- (?), 'Barbe Torte' to (?), Amadeo VII, Conte di Savoia
- (?), Amadeo VIII, Ducha di Savoia to (?), Beatrice
- (?), Beatrice to (?), Ceolwulf, King of Northumbria
- (?), Ceolwulf, King of Wessex to (?), Doreen
- (?), Doreen Elizabeth, Baroness Massey of Darwen to (?), Elizabeth
- (?), Elizabeth to (?), Etienne II, Comte d'Auxonne
- (?), Ettie to (?), Gertrude
- (?), Gertrude to (?), Helen
- (?), Helen to (?), James 'the Bastard'
- (?), James I, Baron de Chacenay to (?), Julie
- (?), Julie to (?), Lydia
- (?), Lydia to (?), Martha
- (?), Martha to (?), Muirdach
- (?), Muiredach to (?), Petar I, King of Bulgaria
- (?), Petar II, King of Bulgaria to (?), Sabina
- (?), Salam to (?), Sybil
- (?), Sybil to (?), unknown wife
- (?), unknown wife to (?), Wladislaw I Herman, Duke of Poland
- (?), Wladislaw I, King of Poland to Abbot, unknown
- Abbots, Cecily to Abdy, Catherine
- Abdy, Catherine Mary to Abercorn, Master of (Claud)
- Abercrombie, 1st Baronet (James) to Aberdeen, Countess of (Susan)
- Aberdour, John Stewart Sholto to Aboyne, Lord of (Adam)
- Abrahall, Arthur John to Ackers, Vera Harriet
- Ackery, Alan Melville to Acland, Hugh
- Acland, Hugh to Acland-Troyte, Marjorie Florence
- Acloque, Alexander to Acton, Thomas
- Acton, Thomas to Adams, Alice Violet
- Adams, Alicia to Adams, Francis
- Adams, Francis Herman Rich to Adams, Marion Rose
- Adams, Marjorie Dawn to Adams, Yvon
- Adams-Beck, James Francis to Addison, William Matthew Wand, 4th Viscount Addison
- Addyman, Edith Constance to Affleck, Robert, 7th Bt.
- Afflick, Deborah to Agnew, Albert
- Agnew, Alexander to Agnew, Gilbert
- Agnew, Gilbert, 1st of Galdenoch to Agnew, Mary Sylvia
- Agnew, Mary Violet Maud to Ahannay, Thomas of Capenoch
- Ahearne, Mary to Ainsworth, Tyxhall
- Air, 10th Viscount of (John) to Aitken, David
- Aitken, David James to Akred, Mary Ann
- Akropolites, Konstantinos to Albu, Victoria Mary
- Albu, Vivian Claud to Alderman, Patricia Nora
- Alderney, Baron of (William Augustus) to Alençon, Pierre II d', Comte d'Alençon
- Alençon, René d' to Alexander, Cristina Cripps
- Alexander, Cyril to Alexander, James
- Alexander, James to Alexander, Noorouz Weston
- Alexander, Norah to Aleyn, William
- Alfeche, Arth Marie Mijaga to Allen of Stillorgan, 6th Baron, co. Dublin (Joshua William)
- Allen, 'King Allen' to Allen, J.
- Allen, Jack to Allen, Steven Rhead
- Allen, Susan Elizabeth to Allhusen, Sabrina Isabella India
- Allhusen, Timothy to Alport, Sidney
- Alsace de Henin-Lietard, Laure Auguste d' to Altenburg, Prinzessin
- Altenburg, Prinzessin to Alverny, Sixtine d'
- Alverstone, 1st Baron to Amherst, Mary
- Amherst, Mary Evelyn to Ancketill, Henry
- Ancketill, Henry George to Anderson, Edna Huia
- Anderson, Edward to Anderson, Margaret Minette Rohais
- Anderson, Margaret Rachel to Anderton, William Ince
- Andigne de Mayneuf, Camille d' to Andrews, Fanny
- Andrews, Florence E. to Andrews, Sarah
- Andrews, Sarah to Angoulême, William IV d'
- Angoulême, William V d' to Anhalt-Bernburg, Wilhelmine Luise Prinzessin von
- Anhalt-Bernburg, Wilhelmine Prinzessin von to Anhalt-Dessau, Wolfgang Albrecht Moritz Friedrich Wilhelm Ernst Prinz von
- Anhalt-Harzgerode, Anna Ursula von to Anhalt-Zerbst, Wilhelm Christian Friedrich von
- Anjelic-Walch, Ivana to Annan, Thomas
- Annan, Thomas Craig to Annesley, Isabel
- Annesley, Isabella to Anson, Beatrice
- Anson, Beatrice Dora Sassoon to Anstey, William Jones
- Anstice, Alice Rosemary Graham to Anstruther, Zaida Mary
- Anstruther-Duncan, Alexander William to Antrobus, Jacinta Leigh-Ann
- Antrobus, James Hugh Lindsay to Apsion, Victoria Marion Ann
- Apsley, 1st Lord, Baron of Apsley, Sussex (Henry) to Arbuthnot, Beatrice Caroline
- Arbuthnot, Belinda to Arbuthnot, Robert Keith, 2nd Bt.
- Arbuthnot, Robert Keith, 4th Bt. to Arbuthnott, Mary
- Arbuthnott, Mary to Archdale, Humphreys
- Archdale, Irene to Archdall, John Charles
- Archdall, Josephine to Archer, unknown
- Archer, unknown to Arden, William, 2nd Baron Alvanley
- Arden-White, C. T. to Argyll, Duchess of (Louise Caroline Alberta)
- Argyll, Duchess of (Louise Hollingsworth Morris) to Armitage, Walter Stanley
- Armitstead, 1st Baron, of Castlehill, in the city of Dundee (George) to Armstrong, James
- Armstrong, James to Armstrong-Jones, Susan Anne
- Armstrong-Lushington-Tulloch, Kinmont Willie to Arnold, William Noel
- Arnold-Forster, Mark to Arran and Cambridge, 9th Earl of (Archibald)
- Arran of the Arran Islands, 1st Earl of, co. Galway (Arthur) to Arthur, Thomas Sigismund Raynor
- Arthur, Tony to Arundell, Frances Catharine
- Arundell, Frances Catherine to Arvidsson, Lilly A.
- Arvse, Henry to Ashburnham, John
- Ashburnham, John to Ashfield, unknown son
- Ashford, 10th Baron, of Ashford, Kent (Rufus Arnold Alexis) to Ashton, Thomas
- Ashton, Thomas to Askwith, William Harrison
- Aslake, Elizabeth to Assheton, Ord de
- Assheton, Pedir Raif Orme to Astley-Corbett, Pamela Irene
- Aston of Forfar, 1st Lord (Walter) to Astor, Kitty
- Astor, Laura to Athole, 9th Marquess of (John George)
- Atholl, 10th Duke of, co. Perth (George Iain) to Atkins, William Bowyer
- Atkinson, (?) to Atkinson, Mary Grace
- Atkinson, Mary Jane to Attlee, Lucy
- Attlee, Margaret Clare to Aucher, Robert
- Auchincloss, Hugh D. to Auersperg, Constantin Georg Prinz von
- Auersperg, Demetra von to Austen, Edward, 6th Bt.
- Austen, Elizabeth to Auvergne, William XIII of
- Auverquerque, Henry d' to Axtell, William
- Axthalb, Elisabeth Charlotte Edle von to Aylett, Anne
- Ayliff, Barbara to Aylmer, FitzGerald Beswick
- Aylmer, FitzGerald George to Aylmer, Richard
- Aylmer, Richard to Azucki, O. A.
- Baads, Beatrix to Backhouse, William, 1st and last Bt.
- Backler, Alicia Sian to Bacon, Tania Mary
- Bacon, Thomas to Baden, Prinz von (Karl Ludwig Friedrich)
- Baden, Prinz von (Karl Ludwig) to Bagenal, Eleanor
- Bagenal, Eleanor to Bagge, Richard Ludwig
- Bagge, Richard Salisbury to Bagot, Edward
- Bagot, Edward to Bagot, Ysolde Cicely
- Bagot-Chester, Clotilde Mary Hamilton to Bailey, Elizabeth Shân Josephine
- Bailey, Emily to Baillie, Edith Georgina
- Baillie, Edward to Baillie, William of Carphin
- Baillie, William of Dunain to Baillieu, Martha
- Baillieu, Mary to Bainbrigge, Robert
- Bainbrigge, Robert to Baird, Margaret le
- Baird, Margaret Stuart to Baker, Edward Baker, 1st Bt.
- Baker, Edward Geoffrey Clinton to Baker, Martha
- Baker, Martha to Balcarres, Master of (Colin)
- Balch, Phoebe Margaret to Balfe, Nicholas Dominick Joseph
- Balfe, Patrick to Balfour, James Charles Murray
- Balfour, James Maitland to Ball, Benjamin George
- Ball, Bent to Ball, William Walker
- Ball, Winifred to Balquhidder, 9th Viscount of (John George)
- Balsac, Catherine de to Banbury, Ralph
- Banbury, Ralph Edgar to Bankes, unknown
- Bankier, Emilia to Bannerman, Wynyard Philip
- Bannero, Katherine Lucy to Barber, William Samuel Timothy
- Barberini, Lucretia to Barclay, Frederick David Henry de Rune
- Barclay, Gavin to Barclay, Yvonne Eleanor Mutch
- Barclay-Maitland, Charles to Bardeau, Maria Immaculata von
- Bardelben, Emilie von to Baring, Constance
- Baring, Constance Mary to Baring, Mary Emily
- Baring, Mary Florence to Barker, Geoffrey Palgrave
- Barker, George to Barlow, Donald Spiers Monteagle
- Barlow, Dorothy to Barmore, William Emmett
- Barnaart, Anna to Barne, Winifred Edith
- Barneby, Margaret Elizabeth to Barnewall, Anthony Brian
- Barnewall, Arthur Walter Aylmer to Barnewall, Sandra Maree
- Barnewall, Sarah to Barran, Lily Maria
- Barran, Lindsay to Barrett, William Thomas
- Barrett-Lennard, 1st Baronet, of Belhus, Essex (Thomas) to Barrett-Lennard, Julie Louise
- Barrett-Lennard, Julieanne to Barrington, Anne
- Barrington, Annette to Barritt, Yvonne
- Barrogill, 1st Baron, of Barrogill Castle, co. Caithness (James) to Barron, William
- Barron, William to Barrow-Simmonds, William
- Barrowcliff, Alina Mary to Barry, David 'Oge'
- Barry, David Anbuille to Barry, Hastings D.
- Barry, Helen to Barry, Margaret
- Barry, Margaret to Barry, Stephen
- Barry, Stephen de to Bartholomew, William W.
- Bartholoni, Jean Francois to Barton, Caspar Lucas
- Barton, Catherine to Barton, John
- Barton, John Charles to Barton, William Thomas
- Barton-Miller, Douglas to Baskerville, William
- Baskervyle-Glegg, Ethne to Basset-Chercot, Marc
- Bassett, Alexander to Bateman-Hanbury, William, 2nd Baron Bateman of Shobdon
- Bateman-Hanbury-Kincaid-Lennox, Charles Spencer to Bath, Richard Brian
- Bathe, 5th Baronet de (Hugo) to Bathurst, Margaret Frances
- Bathurst, Margert Cicely to Battine, Oswald James
- Battiscombe, Arthur to Baxendale, William Lloyd John
- Baxter, Alan George Laurie to Bayern, Joanna von
- Bayern, Josef Clemens Prinz von to Bayern, Tassilo Prinz von
- Bayern, Theodolinde Prinzessin von to Bayley, Mary Steuart
- Bayley, Mary Theophilia Steaurt Clive to Bayly, June Patricia St. George
- Bayly, Karin Rebecca to Baynton, unknown
- Bayntun, Andrew to Beamish, Alicia Gregory
- Beamish, Aline Abigail Hulda to Beamish, Ellenor Roche
- Beamish, Elsie May to Beamish, John Sealy
- Beamish, John Spread Hamilton to Beamish, Sarah
- Beamish, Sarah Brude to Beardsley, Richard
- Beare, Anne O'Sullivan to Beauchamp, Elizabeth, Lady Bergavenny
- Beauchamp, Ephraim to Beauclerk, Grace
- Beauclerk, Gwendoline Loftus to Beaufort, William Morris
- Beaufort-Spontin, 5th Herzog von (Friedrich Georg Maria Anton Michael) to Beaumont, Dorothy
- Beaumont, Dorothy to Beaumont, John Wentworth
- Beaumont, John, 1st Bt. to Beaumont, Walter
- Beaumont, Walter Noel to Becher, Edward Overington
- Becher, Edward William to Becher, Mary
- Becher, Mary to Beck, Mark Thomas Coulton
- Beck, Mary Ann to Beckwith, William Malebisse
- Beckwith-Smith, Annabel Cecilia Mary to Beecham, Kathleen Elizabeth
- Beecham, Mary to Beevor, Thomas Lubbock, 6th Bt.
- Beevor, Thomas William Harvey to Belfast, Earl of (James Arthur)
- Belfield, 1st Baron, of co. Westmeath (Robert) to Bell, Benjamin
- Bell, Benjamin to Bell, Janet
- Bell, Janet to Bell, Sophie Seymour
- Bell, Stella Mary to Bellew, Edward, 3rd Bt.
- Bellew, Edward, 6th Bt. to Bellingham, Henry, 1st Bt.
- Bellingham, Hester Elizabeth to Belmore, Viscountess (Mary Anne)
- Beloe, Catherine Anne Elizabeth to Bence-Jones, William Francis
- Bence-Trower, Agnes Helen to Benn, Zvia
- Bennent, Patricia to Bennett, Audrey Rose-Marie Patricia
- Bennett, Aynslie to Bennett, Kate Eileen
- Bennett, Katharine to Bennett-Jones, William James
- Bennett-Powell, C. E. to Bennison, Robert
- Bennison, Robert to Bentheim-Steinfurt, Prinz von (Christian)
- Bentheim-Steinfurt, Prinz von (Christoph Peter) to Bentley, R. N. C.
- Bentley, Steven to Beresford, Catherine Anne
- Beresford, Catherine Eleanor to Beresford, John Henry de la Poer, 5th Marquess of Waterford
- Beresford, John Hill de la Poer to Beresford-Jones, Nicholas Paul
- Beresford-Knox, Aileen Hilary to Bergh, Simon van den
- Berghe von Trips, Eleanore to Berkeley, Elizabeth de
- Berkeley, Elizabeth de to Berkeley, Mary Anne
- Berkeley, Mary Caroline to Berkley-Matthews, Susan Margaret Gyde
- Berkshire, 10th Earl of (Charles John) to Bernadotte, Countess (Monika Kristina Margaretha)
- Bernadotte, Countess (Sophia Magdalena Maria Birgitta) to Bernard, Mary
- Bernard, Mary to Berney, Thomas
- Berney, Thomas Hugh to Berry, Zephaniah Donald
- Berry-Jones, D. J. to Bertodano, Tessa de
- Bertoli, Alice to Best, L. Vans
- Best, Lily Dorothy to Bethell, William Anthony
- Bethell, William Gladstone to Bevan, George Jones
- Bevan, George Michael Briscoe to Bewicke, Violet Margaret
- Bewley, Alfred William to Biber, Jennifer Beryl
- Biber-Erskine, George Eden to Biddulph, Eliza
- Biddulph, Elizabeth to Biddulph, Robert Richard
- Biddulph, Robert Waller to Bigham, Roger Claude
- Bigham, Veronica Beatrice to Bing, William Leslie
- Bingel, Bernard William to Bingham, Vera Mary
- Bingham, Vera Maud Temple to Birch, Zoe Georgette Frances Marie
- Birchall, Elizabeth to Birdwood, James
- Birdwood, James to Birkmyre, Serena Jane
- Birley, Annabel to Bishopp, Thomas, 3rd Bt.
- Bishopston, Baron, of Newark in the County of Nottinghamshire (Edward Stanley) to Black, Michael Donald Gordon
- Black, Moorea to Blackall, William
- Blackborow, Angela Mary to Blacker, Valentine
- Blacker, Violetta to Blackley, John
- Blackley, John to Blagrave, Kathleen Digby
- Blagrove, Alice Evelyn to Blake, Anna
- Blake, Anna to Blake, Flemming Martin ffrench
- Blake, Florence Anne to Blake, Lucy Agnes
- Blake, Lucy Charlotte Ellen to Blake, Rose Georgina
- Blake, Rose Spencer to Blakeney, Elizabeth
- Blakeney, Elizabeth to Blakeney, William
- Blakeney, William to Blakiston, Reginald Norman
- Blakiston, Rhonda Maree to Bland, Francis, 2nd Bt.
- Bland, Frederick Robin James to Blaney, Mary Elizabeth
- Blanger, Beatrice Wenefryde to Bledisloe, Viscountess (Joan)
- Bleeck, Alice to Blennerhassett, Elizabeth
- Blennerhassett, Elizabeth to Blennerhassett, Margaret Theodora
- Blennerhassett, Margaretta Sophia to Blennerhassett, Wyvill
- Bles, Rose to Bligh, Sophia
- Bligh, Sophia Henrietta to Blois, William M. de
- Blois, William of Boulogne, 4th Earl of Surrey to Blood, Charlotte
- Blood, Charlotte to Blood, Mary
- Blood, Mary to Blood-Smyth, Matthew Richard Liddon
- Blood-Smyth, May to Blount, Nicola Jane Eileen
- Blount, Oliver Charles to Blundell, William
- Blundell-Brown, Geoffrey Thomas to Blunt, John Edward Chicheley
- Blunt, John Harvey, 8th Bt. to Blythswood, Baroness (Mabel)
- Blyton, Baron, of South Shields in the County of Durham (William Reid) to Bodeley, Mary
- Boden, Anthony Drummond to Bogue, Richard
- Boguth, Hildur to Boileau, Mary Catherine
- Boileau, Mary Georgina to Bollard, Sandra Louise
- Bolle, Bridget to Bomhard, Nikolaus von
- Bona, Gabriella to Bond, Louisa Sarah
- Bond, Margaret Elizabeth to Bonhoff, Hedwig
- Boniface, Andrew Keith to Boone, William John
- Boonen, Flora to Booth, Margery
- Booth, Margery to Boothby, Margaretta Jane
- Boothby, Margaretta Laura to Borbone, Carlos Pedro, Duca di Calabria
- Borbone, Carlos Xavier, Principe di Parma to Borbón y Bernaldo de Quirós, Manfredo, Duque de Hernani
- Borbón y Campos, Beatriz de to Boreel, Catherine
- Boreel, Catherine to Borgo, Mary di
- Borgogna, Willa II di to Borrie, William Robinson
- Borries, Bodo von to Borthwick, Grissel
- Borthwick, Grizel to Borthwick, William, 2nd of Soltray
- Borthwick, William, 3rd Lord Borthwick to Bosanquet, Maud Mariota
- Bosanquet, Maude Aylmer Tindal to Bostock, unknown
- Boston of Faversham, Baron, of Faversham in the County of Kent (Terence George) to Boteler, William, 2nd Baron Boteler of Brantfield
- Boterel, Isabel to Bottlenberg-Landsberg, Maria Theodora von dem
- Bottom, Seth to Bouke, Mary
- Boukema, Tryntje Hendriks to Boulware, Louisa Goddard
- Boumaza, Boudjemaa to Bourbon, Louis XVII Charles
- Bourbon, Louis XVIII to Bourchier, John, Lord FitzWarin
- Bourchier, John, Lord FitzWarin to Bourgogne, Yolande de
- Bourke of Bophin, 1st Baron, co. Galway (John) to Bourke, Richard 'Oge'
- Bourke, Richard 'Sassanagh' to Bouverie, William, 3rd Earl of Radnor
- Bouverie-Pusey, Edward to Bowden, Henrietta Matilda
- Bowden, Henry to Bowen, Winifred Gwyneth
- Bowen-Colthurst, John Colthurst to Bowlby, Anthony Hugh Mostyn, 2nd Bt.
- Bowlby, Archie to Bowles, Horace Edgar
- Bowles, Humphrey to Bowyer, Frances
- Bowyer, Francis to Boyce, Victoria Claire Alexandra
- Boyce-Dennis, Christopher Richard to Boyd, Jean
- Boyd, Jean to Boyd-Carpenter, Thomas Patrick John
- Boyd-Orr, 1st Baron, of Brechin Mearn, co. Angus (John) to Boyle, Charles, 3rd Earl of the County of Cork
- Boyle, Charles, 4th Earl of Orrery to Boyle, Idonia Maree
- Boyle, Iona Janet Flora to Boyle, Olivia Mary
- Boyle, Patricia to Boynton, Louisa
- Boynton, Mary to Brabazon, William, 9th Earl of Meath
- Brabetz, Eugenie to Bradeston, Thomas, 1st Lord Bradeston
- Bradfield, Canon William to Bradshaigh, Thomas
- Bradshaw, (?) to Brady, Letitia
- Brady, Letitia to Brahe, Peder, Count of Visingsborg
- Brai, Milo II, Vicomte de Troyes to Branca, Therese von
- Brancaccio, Eleanora to Brandenburg, Kurfürst von (Georg Wilhelm)
- Brandenburg, Kurfürst von (Joachim Friedrich) to Brandolini d'Adda, Guido, Conte di Valmareno
- Brandolini d'Adda, Guido, Conte di Valmareno to Brasil, Pedro de
- Brasileira, Isabel Maria de Alcántara to Braunschweig, Wilhelm von
- Braunschweig-Bevern, Amelia Christine von to Braunschweig-Lüneburg, Otto II Herzog von
- Braunschweig-Lüneburg, Otto III Herzog von to Braunschweig-Wolfenbüttel, Prinzessin von ((?))
- Braunschweig-Wolfenbüttel, Prinzessin von ((?)) to Breadalbane and Holland, Countess of (Mary)
- Breadalbane of Kenmore, 1st Baron, co. Perth (Gavin) to Bremner, William
- Bremond d'Ars, Catherine de to Bretagne, John II de Montfort de
- Bretagne, John, 3rd Earl of Richmond to Brewster, William
- Brey, Anja Katrina to Bridgeman, Mary Meriel Gertrude
- Bridgeman, Mary Selina to Bridges, William Samuel
- Bridgewater, Adrian Alexander to Briggs, Graham Ian
- Briggs, Helen Patricia to Brinckman, Theodore Henry Lavington
- Brinckman, Theodore Henry Lavington, 1st Bt. to Briscoe, Frances
- Briscoe, Frances to Bristow, Vic
- Bristowe, Albert William to Broadley, Robert Alexander Longman
- Broadly, Eleanor Sarah to Brocklehurst, William Coare
- Brockman, Amy to Brodie, Janet
- Brodie, Janet to Brodrick, Ruth Severn
- Brodrick, Sheila Campbell to Bromhead, David de Gonville
- Bromhead, Diana Jane Gonville to Brooke of Beauchamps Court, Baroness (Mary)
- Brooke of Cumnor, Baron, of Cumnor in the Royal County of Berks (Henry) to Brooke, Frances
- Brooke, Frances to Brooke, Pembroke
- Brooke, Pembroke to Brookfield, William
- Brooking, Anna Clementine to Brooksbank, William
- Brooksbank, William to Brougham, William, 2nd Baron Brougham and Vaux
- Broughshane, 1st Baron, of Kensington, co. London (William Henry) to Broughton, Peter
- Broughton, Peter to Broun, Lilian Henrietta
- Broun, Lilias to Brown, Benjamin Geoffrey
- Brown, Benjamin H. D. to Brown, Isla Clifton
- Brown, Isobel to Brown, Paula Claire
- Brown, Pauline Emily Gwyneth Mansel to Browne, 4th Baronet, of the Neale, near Ballinrobe, co. Mayo (George)
- Browne, 4th Earl of (Philip George) to Browne, Elliott Martin
- Browne, Elma Valerie to Browne, Magdalen
- Browne, Maia Philippine to Browne, Winifred
- Browne-Clayton, Celia Jeanne to Broxbourne, Baron, of Broxbourne in the County of of Hertfordshire (Derek Colclough)
- Broyes, Sire de (Simon) to Bruce, Anne
- Bruce, Anne to Bruce, Elizabeth
- Bruce, Elizabeth to Bruce, Janet
- Bruce, Janet to Bruce, Mary
- Bruce, Mary to Bruce, Roderick Hulme
- Bruce, Roland Christopher to Bruce-Gardyne, Victoria Sophie
- Bruce-Jones, Ian David to Brudenell-Bruce, Robert Thomas
- Brudenell-Bruce, Rosemary Enid to Brunner, Jennifer Margaret Felicity
- Brunner, John to Bryan, Wilmot Eardley
- Bryans Burton, Lord of (William) to Buccleuch, Duchess of (Elizabeth Marion Frances)
- Buccleuch, Duchess of (Harriet Katherine) to Buchan-Hepburn, John of Smeaton Hepburn, 2nd Bt.
- Buchan-Hepburn, John Trant to Buchanan-Jardine, Tessa Mary
- Buchanan-King, Joan to Buckley, Rebecca
- Buckley, Rex to Buckworth-Herne-Soame, Susan
- Bucquoy, Carlotta Hilda von to Buffett, Henry Rowland
- Buffett, Henry Seymour to Buisson, Kimberley Joy
- Buist, Elizabeth Jean to Bull, Maria
- Bull, Mary to Bulmer, Margaret
- Bulmer, Margaret de to Bunbury, William, 5th Bt.
- Bunbury-Tighe, Frances to Burbidge, Woodman
- Burbridge, Ann to Burdett, Sophia
- Burdett, Sophia to Burgh, Catherine
- Burgh, Catherine to Burgo, Walter, Earl of Ulster
- Burgos, Guy to Burke, Richard
- Burke, Richard to Burn-Callander, William Henry
- Burnaby, 1st Baronet (William) to Burnett, John Fassett
- Burnett, John Godfrey to Burntisland, Lord (James)
- Burntwood, Baron, of Burntwood in the County of Staffordshire (John Ward) to Burrell, Rowena Frances
- Burrell, Roy Herbert Adams to Burt, Vanessa Mary Linda
- Burtenshaw, Alma to Bury, Catherine
- Bury, Catherine Maria to Bussche-Ippenburg, Ricarda Baronin von dem
- Bussche-Streithorst, Axel Freiherr von dem to Butler, Anne Judith
- Butler, Anne Margaret to Butler, Eleanor
- Butler, Eleanor to Butler, Helen Williamina
- Butler, Henrietta to Butler, John, 6th Earl of Ormonde
- Butler, Joyce Caroline to Butler, Nina Helen
- Butler, Nora to Butler, Theobald 'na Sidheáin'
- Butler, Theobald 'na Sidheáin' to Butler-Henderson, Patrick
- Butler-Johnstone, (?) to Butterfield, William John Hughes, Baron Butterfield
- Butterick, (?) to Buxton, Darren Richard Blake
- Buxton, David Adrian Leonard to Buxton, Margaret Isabel
- Buxton, Margaret Jane to Buzzaccarini de Vetulis dei Marchese, Maria Gabriella de
- Buzzaccarini de Vetulis, Alvise Francesco, Marchese e Comte to Byng, Mary Elizabeth
- Byng, Mary Millicent Rachel to Byron, Henry
- Byron, Henry James to Cable-Alexander, Susan
- Caborne, Mary Lilian to Cadman, Elizabeth Jane
- Cadman, Ella Cope to Cadogan, William, 1st Earl Cadogan
- Cadoux-Hudson, Daniel Patrick to Cairnes, William Henry
- Cairney, Alfred Vickers to Caithness, James E.
- Caithness, Master of (John) to Caley, William
- Calfhill, Alexander to Callinan, Constance Eileen
- Callingham, G. R. to Calvi, Yolanda Marguerite
- Calvin, Barbara Patricia to Cameron, Alexandra
- Cameron, Allan Alexander to Cameron, Lisa Maree
- Cameron, Lord (John) to Campbell, 2nd Baronet, of Gartsford, co. Ross (Alexander Thomas)
- Campbell, 2nd Baronet, of Glenorchy, co. Perth (Colin) to Campbell, Annabella
- Campbell, Annabella to Campbell, Cecil Elizabeth
- Campbell, Cecilia to Campbell, Donald
- Campbell, Donald to Campbell, Emily Caroline
- Campbell, Emily Frances Margaret to Campbell, Helen Maria
- Campbell, Helen Marjorie to Campbell, Janet Miller
- Campbell, Janet Morrison to Campbell, John, 3rd of South Hall
- Campbell, John, 4th Duke of Argyll to Campbell, Maria Helen
- Campbell, Maria Louisa to Campbell, Olivia Rowlandson
- Campbell, Olympia to Campbell, unknown
- Campbell, unknown to Campbell-Orde, Peter Stewart
- Campbell-Orde, Richard Stewart to Candee, Theodore William
- Candela de Lima, Anaiz to Canning of Kilbrahan, 2nd Viscount, co. Kilkenny (Charles John)
- Canning, 1st Earl (Charles John) to Capel, Nancy May
- Capel, Nancy Patricia to Capell-Coningsby, Sarah
- Capella y Gomez-Acebo, Francisco to Carbery, William Edward
- Carbonaro, Carla to Cardew, Kenneth Hugh Frederic
- Cardew, Linda to Carew, Dana Elizabeth
- Carew, David Edward to Carew, Suzanne Marie
- Carew, Suzanne Marie to Carlaw, Mary
- Carlerton, Petrina to Carlton, Viscount (Richard Alan Montagu)
- Carlyle of Torthorwald, 1st Lord (John) to Carmichael, James
- Carmichael, James to Carne, Nicola Trench
- Carne, Robert to Carnegie, Margaret
- Carnegie, Margaret to Carpenter, Robert
- Carpenter, Sarah to Carrara, Taddea de
- Carraresi, Conte dei (Alberto) to Carruthers, Rosemary
- Carruthers, Simon Francis to Carter, Kevin Mark
- Carter, Laura Hadley to Caruth, Patrick James Lumley
- Carvajal, Maria-Luisa de to Cary, Martha
- Cary, Mary to Casdagli, Theodore E.
- Case, Angela Theodora, Baroness Billingham to Cassillis, Master of (Thomas)
- Cassin, Marie Sophie de to Castell-Rüdenhausen, Graf zu (Bertram Friedrich)
- Castell-Rüdenhausen, Graf zu (Carl-Eduard Friedrich Hubertus) to Castilla, Sancho de
- Castilla, Sancho de to Castleton, Joshua Allan
- Castleton, Louise Caroline to Cathcart, Georgiana
- Cathcart, Grizel to Catto, William
- Caudell, Kate Maria to Caulfeild, Jessie
- Caulfeild, Joan to Causton, Cecily
- Cautley, 1st Baron, of Lindfield, co. Sussex (Henry Strother) to Cave, Margaret
- Cave, Margaret to Cave-Browne-Cave, Isabelle Verney
- Cave-Browne-Cave, Jack Priestley to Cavendish, Charlotte Elizabeth
- Cavendish, Christian to Cavendish, Mark Francis
- Cavendish, Martha Douglas to Cavendish-Bentinck, Winifred Anna
- Cavendish-Taylor, George to Cayley, Charles
- Cayley, Charles Digby to Cayley, Sarah Philadelphia
- Cayley, Sarah Philadephia to Cecil, David Henry Amherst
- Cecil, David, 3rd Earl of Exeter to Cecil, Theodosia
- Cecil, Thomas to Chabrillan, Marquis de (Leonor Alfred Aynard Fortune)
- Chabrillat, Geneviève Laurence Blanche to Chalmers, Margaret
- Chalmers, Margaret to Chamberlayne, Thomas
- Chamberlayne, Thomas, 1st Bt. to Champion de Crespigny, William, 2nd Bt.
- Champion, Alice Augusta to Chandler, William Kellman II
- Chandos of Sudeley, 10th Baron, co. Gloucester (Henry) to Chaplin, William
- Chapman, 1st Baronet, of London (William) to Chapman, Peter Stuart
- Chapman, Phillis to Charlemont, Viscountess (Sarah)
- Charles, 2nd Baronet (Allen Aitchison Havelock) to Charteris, Dorothy Alice
- Charteris, Dorothy Margaret to Chastel de la Howarderie, Yvonne du
- Chastelais, Dame de (Marie) to Chavanne, Rudolf Edler von
- Chavasse, Anne Georgina to Cheales, Sophie
- Cheape, Alexander Ogilvy to Chenevix Trench, John Gordon
- Chenevix Trench, Julius Francis to Chernigov, Vsevolod of, Duke of Chernigov
- Chernock, 1st Baronet, of Holcot [Hulcote], co. Bedford (John) to Chester, William
- Chester, William Heneage to Chetwynd, Crispin
- Chetwynd, Denyse Jacqueline to Chetwynd, William
- Chetwynd, William to Chevallier, Harriet
- Chevallier, Isabel to Chichester, Adah Georgiana
- Chichester, Adolphus John Spencer Churchill to Chichester, Jessica Mary
- Chichester, Jill Katherine to Chiesley, John
- Chiesly, John to Chilvers, William Charles Norman
- Chimay, Alphonse de to Chisholme, Wiland deof Comar
- Chisman, Abigail to Cholmeley, Winifred Susan
- Cholmeley-Harrison, Barbara Mary Corisande to Cholmondley, unknown daughter and heir de
- Choloniewska, Marie to Christian, Aymy
- Christian, Barbara to Christian, Elizabeth
- Christian, Elizabeth to Christian, Glenn
- Christian, Glyn to Christian, John Mills
- Christian, John Monsell to Christian, Mary Elizabeth
- Christian, Mary Elizabeth L. to Christian, Stephen Holder
- Christian, Stephen John to Christie-Miller, Violet Lavender
- Christierson, Ingrid von to Churchill, Mary
- Churchill, Mary to Ciudad Rodrigo, Arthur de
- Civelle, Jeanne de to Clanwilliam, Viscountess of (Theodosia)
- Clapcott, Louisa to Claridge, Tobias
- Clarina of Elm Park, 1st Baron, co. Limerick (Eyre) to Clark, Janet
- Clark, Janet to Clark, Zeta Reba
- Clark-Hall, Michael to Clarke, Florence Smallwood
- Clarke, Frances to Clarke, Rena
- Clarke, Rhoda Margaret to Claudel, Paul
- Claudius, Alice Sidonia to Clayhills-Henderson, Pamela
- Claymond, Mildred to Clayton, unknown
- Clayton, unknown to Clements of Kilmacrenan, 4th Baron, co. Donegal (Charles)
- Clements, Agnes to Clerk, Henry
- Clerk, Henry Joseph to Clerke, Robert
- Clerke, Robert William to Cleveland, William Neal
- Cleverly, Margaret Anne to Clifford, Elizabeth
- Clifford, Elizabeth to Clifford-Smith, Reginald William
- Clifford-Wing, Sarah Daniel to Climo, Elizabeth Catherine
- Climo, Elizabeth Catherine to Clinton-Hope, Henry Pelham
- Clinton-Smith, Nathalie to Clotworthy, Mary
- Clough, Alice Eleanor to Clutterbuck, Marion Norah Daphne
- Clutterbuck, Mary Anne to Coats, George
- Coats, George to Cobbold, Sarah
- Cobbold, Sarah to Cochrane, Anne
- Cochrane, Anne to Cochrane, Mabel Alice Maria
- Cochrane, Mabel Dorothy to Cockburn, Alexander Claud
- Cockburn, Alexander de to Cockerell, William Michael Victor Lewis
- Cockerill, Benjamin Dacre to Codrington, Mary
- Codrington, Mary to Coghill, Rosemary Caroline
- Coghill, Samantha Jane to Coke, Juliana
- Coke, Katharine Mary to Coldstream, Margaret
- Coldwell, Anna M. to Cole, Yvonne
- Cole-Baker, George to Coleridge of Ottery St. Mary, Bernard John Seymour co. Devon
- Coleridge, Alethea Buchanan to Colfox, William Philip, 1st Bt.
- Colgate, Cora to Colley, Theodore
- Colley, Thomas to Collins, James
- Collins, James to Colman, Mary
- Colman, Mary to Colquhoun, John
- Colquhoun, John to Colthurst, Charlotte Louisa Margaret
- Colthurst, Christopher to Colville of Culross, Viscountess (Ruby)
- Colville, 1st Baron, of Culross, co. Perth (Charles John) to Colville, Mary
- Colville, Mary to Combe, Ralph Molyneux
- Combe, Richard to Compton, Jane
- Compton, Jane to Conant, Sheena Lorraine
- Conant, Simon Edward Christopher to Connell, Susan Jean
- Connell, Thomas Blackall to Constable, Willoughby Verner
- Constable, Winifred to Consterdine, Marion Augusta
- Contades, Andre Marie Artur Aymard de to Conyers, William, 1st Lord Conyers
- Conyers-Baker, Arthur William Hay to Cook, Leigh
- Cook, Leslie to Cooke, Gertrude Caroline
- Cooke, Gladys to Cooke-Collis, Zachary
- Cooke-Hurle, Alison Margaret to Coombs, unknown
- Cooney, (?) to Cooper, Harriett
- Cooper, Harriette to Cooper, William Jeremy Daniel
- Cooper, William Jesse to Coote, Evan Blechynden
- Coote, Evelyn Alice to Copage, Lucinda Anne
- Cope of Berkeley, Baron, of Berkeley in the County of Gloucestershire (John Ambrose) to Coppin, Thomas
- Coppin-Straker, John to Corbett, Mary Elizabeth Cavan
- Corbett, Mary Geraldine to Corke, William Edward Orlando
- Corker, Charlotte to Cornwall, Duke of (Edward VII)
- Cornwall, Duke of (Edward VIII) to Cornwallis, Yvonne
- Cornwallis-West, Beatrice Stella to Cortese, Maria Luisa
- Cortina, Manuel de to Coslett, T. A.
- Cosme, Georges to Cotter, Eleanor
- Cotter, Eleanor Grace to Cotter, Penelope
- Cotter, Peta Natalie to Cotton, Edward Thomas Davenant
- Cotton, Elaine Christine Isobel to Cotton, Willoughby Lynch
- Cotton-Jodrell, Dorothy Lynch to Couper, Robert
- Couper, Robert Nicholas Oliver, 6th Bt. to Courcy, Nicholas de
- Courcy, Nicholas de to Courtenay, Henry Hugh, 15th Earl of Devon
- Courtenay, Henry John Baldwin to Courthope, John
- Courthope, Lucy to Coventry, Anne Margaret
- Coventry, Annette Emily Mary to Coventry, Marion
- Coventry, Mark to Cowell, Susanne
- Cowell-Stepney, 2nd Baronet (Arthur Keppel) to Cowper, William, 2nd Bt.
- Cowper-Temple, Georgiana to Cox, William Sandeman
- Cox, Winifred Blanche Victoria to Cradock-Hartopp, William Edmund, 3rd Bt.
- Cradock-Hartopp-Fleetwood, George Harry William to Cramer, William
- Cramer-Klett, Anna Chariklia von to Craufurd, Archibald
- Craufurd, Archibald of Previck and Thirdpart to Craven, John
- Craven, John to Crawford, John Shields
- Crawford, Judith Carol to Crawley, John Percy
- Crawley, John Sambrooke to Crawshaw, Victor Benjamin Charles
- Crawshay, Augusta Jane to Cressac de Sloeuvre, Yolande de
- Cresset, Anne to Crichton of Sanquhar and Cumnock, 9th Lord (John)
- Crichton of Sanquhar, 10th Lord (William) to Crichton, Richard John Vesey
- Crichton, Robert to Cripps, William Lawrence
- Crips, Elizabeth to Croft, Richard Marsh
- Croft, Richard Nicholas Page to Croker, Mary
- Croker, Mary to Crookenberg, Mary
- Crookenden, Agnes Louise to Cross, Judith Christine
- Cross, Lawrence Keith to Crowe, William
- Crowet, Nathalie Gillion to Croy, Sandra
- Croy, Sebastian Josef Alexander Carl Peter to Croÿ, Jana von
- Croÿ, Jean Diego Patrick Antoine Francis Prinz von to Crust, Susannah
- Crutchley, Alice Mary to Cuffe, William Ulick O'Connor, 4th Earl of Desart
- Cuidad Rodrigo, David Reginald de to Culwen, William
- Culwick, Mary to Cuninghame, William, Bt.
- Cunison, Lovdie to Cunningham, William, of Caprington
- Cunningham-Durham, Agnes Elizabeth Audrey to Curran, Lavinia Margaret Ellen
- Curran, Letitia to Currie, William Frank Philip
- Currin, Julie to Curwen, Thomas
- Curwen, Thomas to Cust, Dorothy
- Cust, Dorothy to Cutsem, Zara van
- Cutte, Judith to Czernin von und zu Chudenitz, Martha Moser
- Czernin von und zu Chudenitz, Maud Sarah to Daborne, Maud
- Dabridgecourt, George to Dalberg-Acton, Richard Maximilian
- Dalbiac, Charles to Dallmeyer, Ursula Nina
- Dallowe, Elizabeth to Dalrymple-Hay, George Houston
- Dalrymple-Hay, George James to Daly, Joanna Harriet
- Daly, John to Dalzell, Thomas
- Dalzell, Thomas to Dangerfield, Margaret Stanley
- Daniel de Vargyas, Judith to Danniell, Tobias Hugh
- Danny, Christopher to Darell, Florence
- Darell, Florence to Darnley, Lord (John)
- Darnton, Ann to Dashwood, Mary Margaret
- Dashwood, Mary Sophia to Davey, Robert Bruce
- Davey, Ryan to Davidson, William Smytton
- Davidson-Houston, Bennett Clear to Davies, Marjorie Elizabeth
- Davies, Mark to Davis, Deborah
- Davis, Debra Ann to Davison, William
- Davison, William Henry, 1st Baron Broughshane to Dawnay, Moyra Jane
- Dawnay, Ned to Dawson, Rosemary Ann
- Dawson, Rosemary Katharine to De La Rue, Thomas Andros, 1st Bt.
- De La Warr, 10th Earl (William Herbrand) to Dean, Winton Basil
- Dean-Pitt, George to Debenham, Winifrede Gillian
- Debesse, Marie Claude Tillier to Degenfeld-Schonburg, Marie Agnes Ludovika Gräfin von
- Degenfeld-Schonburg, Marie Franziska Stephanie Lily Marie-Gabriele Walburgis Gräfin von to Delaval of Redford, 1st Baron, co. Wicklow (John Hussey)
- Delaval of Seaton Delaval, 1st Lord, co. Northumberland (John Hussey) to Demidoff, Paul Pavlovich, Principe di San Donato
- Demidy, Tevanui to Denman of Dovedale, 5th Baron (Charles Spencer)
- Denman, Anna Maria Heywood to Dennel, Rosamund C.
- Dennes, Elizabeth Ann to Dent, William
- Dent, William to Deriziotis, Tessa Rose
- Dermot, Maxine to Desnier, Marie
- Despard, Harriet Anne to Devereux, Walter, 1st Viscount Hereford
- Devia, Mercédès to Deym zu Stritetz, Maria Theresia Gräfin von
- Deym zu Stritetz, Martin Graf von to Dickinson, Elizabeth Anne
- Dickinson, Emily Letitia Georgina to Dickson, William, 3rd Bt.
- Dickson-Poynder, Anne Beauclerk to Digby, Kenelm Edward
- Digby, Kenelm Essex Wingfield to Dillon, Christina
- Dillon, Clare Valentine to Dillon, Thomas
- Dillon, Thomas to Dix, Stephen Hamilton
- Dixey, Ada Mary to Dobbs, Richard Francis Andrew
- Dobbs, Richard Heyworth to Dodds, William Bellingham Denis
- Dodge, Alan James to Doig, Isabella Dick
- Doig, James Robert to Domville, William Compton
- Don, 6th Baronet (Alexander) to Donellan, Theodosia
- Donelly, Anne Jane to Donovan, William Victor
- Doody, Diane Pamela to Dormer, John Hubert Charles
- Dormer, John Kenelm to Doughty-Tichborne, Theresa Mary
- Doughty-Wylie, Brian Peirson to Douglas, David of Mains
- Douglas, David Sholto William to Douglas, James
- Douglas, James to Douglas, Maria delle Grazie
- Douglas, Maria Louisa to Douglas, Winona Constance De Maraisville
- Douglas-Campbell, Anna Leonora Beatrice to Douglas-Home, William Montagu
- Douglas-Irvine, Anne Frances to Dove, William Lionel
- Dover, 1st Baron, of Dover, Kent (George James Welbore) to Downey, Sean
- Downey, Thomas to Doyne, Sarah Caroline
- Doyne, Timothy Robert Hamish to Drake-Briscoe, Rosalind Gertrude
- Drake-Brockman, Alan Godfrey to Drew-Smythe, Richard David Somerset
- Drewe, Elizabeth to Dru, unknown
- Druce, Beryl Irma to Drummond, George, 14th Earl of Perth
- Drummond, Georgina Augusta to Drummond, Rachel
- Drummond, Richard to du Rose, James
- Du Vernet, Diane to Duckworth, Sarah Margaret Katharine
- Duckworth, Shirley to Duerdin, Susanne
- Duerler, Renee to Duff, Isabel
- Duff, Isabel Abercromby to Duff, Sophia
- Duff, Sophia to Dufty, Zema
- Dugale, Clare Lucinda to Dumaresq, William Alexander
- Dumaresque, Abraham to Dunbar, Jean
- Dunbar, Jean to Dunboyne, Baroness (Mary Anne Vincent)
- Duncan of Camperdown, 1st Viscount (Adam) to Duncombe, Mabel Violet
- Duncombe, Margaret to Dundas, Yone Anne Pinks
- Dundee, 10th Earl of (Henry) to Dunkeron, 9th Baron (George John Charles)
- Dunkin, Eliza to Dunn, William
- Dunn-Smith, Dora Lizzie to Duperell, Louisa Harriet
- Duplat de Monticourt, Mathilde to Durning, William
- Durning-Lawrence, 1st Baronet, of King's Ride, Ascot, co. Berks (Edwin) to Dutton-Barker, Audrey Eileen
- Dutton-Colt, Lucy to Dyer, Patricia
- Dyer, Patrick Swinnerton to Dysart, Samuel
- Dyson, Alison to Earle, Ronald Hamilton
- Earle, Sarah to Ebbin, Ralph
- Ebbisham, 1st Baron (George Rowland) to Eden, Caroline
- Eden, Caroline to Edenborough, Mary Ann Wontnor
- Edensor, Adam de to Edgeworth, William
- Edghill, Elizabeth to Edward, William Walter
- Edwardes, 3rd Baronet, of Shrewsbury, co. Shropshire (Francis) to Edwards, Margaret
- Edwards, Margaret to Egerton, Catherine
- Egerton, Cecil Martin to Egerton, William Tatton, 1st Baron Egerton of Tatton
- Egerton-Cust, John William Spencer Brownlow to Einsiedel, Valerie von
- Einsiedel, Victoria von to Elford, Murray
- Elgar, Alfred to Ellershaw, Wilfred
- Ellert, Barbara Jean to Elliot, James of Woollie
- Elliot, Jane to Elliott, Yule
- Elliott-Cooper, G. D'Arcy to Ellison, unknown
- Ellison-Macartney, Elizabeth Phoebe to Elphinstone, Marjorie Rose
- Elphinstone, Marjory to Elverfeldt, Wolfram Baron von
- Elverfeldt-Ulm, Antonius Baron von to Embry, Patrick Paul Elliot
- Embury, Alice to Engelhardt, Wolf Baron von
- Engelson, Einar to Enniskillen, Viscountess of (Anne)
- Ennismore, Viscount (Richard) to Erbach-Erbach, Sophie Gräfin zu
- Erbach-Furstenau, Anna Dorothea zu to Eriksdottir, Sophie, Princess of Denmark
- Eriksson, Christof to Erroll, Countess of (Mary Lucy Victoria)
- Erroll, Countess of (Mary) to Erskine, Fiona
- Erskine, Fiona Catharine to Erskine, Margaret Catherine
- Erskine, Margaret Eleanor to Esburnham, Stephen de
- Escalona, Joao Fernandez de to Espel y Echeverria, Maria Salvadora Brigida
- Espeut, Ethel Maude to Este, unknown d'
- Esteban y de Iranzo, Isabel, Condessa de Estaban to Etwell, Mary
- Eu, 1st Count of (William) to Evans, Botticelli Verily Boadicea
- Evans, Brabazon to Evans, George
- Evans, George to Evans, Margaret Frances
- Evans, Margaret Joan to Evans, Valentine Mary
- Evans, Vicki Lee Royal Lindsay to Everard, Redmond, 2nd Bt.
- Everard, Redmond, Bt. to Ewing, Robert
- Ewing, S. C. to Eyres, Sybil
- Eyrl von und zu Waldgries und Liebenaich, Alix Andrea to Fagan, Thomas
- Fagel, Agnes Margaret Catharine to Fairlie of Fairlie, 4th Baron, Ayrshire (Patrick Robin Archibald)
- Fairlie, 6th Baronet (William) to Falkiner, Frederick
- Falkiner, Frederick to Fane, Cecil
- Fane, Cecil to Fanning, William Atmar
- Fanning-Evans, Berys to Farnese, Rainuzzio II, Duca di Parma
- Farnfield, Belinda Alice Irene to Farrant, William
- Farrar, 1st Baronet (George) to Faucigny-Lucinge et Coligny, Stanislas de
- Faucigny-Lucinge, Agnes de to Fawcett, Rebecca
- Fawcett, Richard to Feilding, Anita Mary
- Feilding, Ann to Feiling, William Parnell
- Feilitzsch, Ilse von to Fenton, Michael
- Fenton, Michael, 1st Bt. to Ferguson, unkown
- Ferguson, Victor Bruce to Fernandez-Maquieira y Fernandez-Maquieira, Zanaida
- Fernandez-Maquieira y Oyanguren, Carlos to Ferrers, Dorothy
- Ferrers, Earl, of Derby (Thomas) to Fetherstonhaugh, Catherine Mary
- Fetherstonhaugh, Cecil Howard Digby to Fetherstonhaugh, Rupert John
- Fetherstonhaugh, Rupert Pennefather to Field, Lucy
- Field, Lynette to Fiennes, William, Baron of Tingry
- Fiennes-Clinton, Alice Gertrude to Finch, Heneage
- Finch, Heneage Greville, Lord Guernsey to Finglass, Patrick
- Fink, Charles to Finnie, Jane
- Finnie, Janet to Fish, Sarah Stutson
- Fishbourne, Anne to Fisher-Rowe, Victoria Isabella
- Fisherwick, 1st Baron, co. Stafford (Arthur) to Fitz-Clarence, Louise Margaret Diane
- Fitz-Clarence, Maria Henrietta to FitzGeorge, Sophia Jane
- FitzGeorge-Balfour, Charlotte Amaryllis to FitzGerald, George Frederick
- FitzGerald, George Peter Maurice, 5th Bt. to FitzGerald, Mary Rachel
- FitzGerald, Matilda to FitzGibbon, John, 3rd White Knight
- FitzGibbon, John, 5th White Knight to FitzJames, Edouard
- FitzJames, Edouard Antoine Sidoine de to Fitzmaurice, Ellen Grace
- FitzMaurice, Ellena to FitzMaurice, Slany
- FitzMaurice, Susanna to Fitzroy, Charles
- FitzRoy, Charles to FitzRoy, Robert
- Fitzroy, Robert Hope to FitzWilliam, William, Viscount Milton
- Fitzwilliams, Caroline L. to Fleming, Anne Geraldine Mary
- Fleming, Anne Margaret to Fleming, William
- Fleming, William to Fletcher, Theresa Evelyn Vilunza
- Fletcher, Thomas to Florio, Igieai Constanza
- Florsheim, Esther to Foale, Rodney
- Fobert, Alram, Marquis d'Esternay to Foljambe, Margaret
- Foljambe, Margaret to Fooks, Serena Alice
- Foord, Eleanor to Forbes, Elizabeth
- Forbes, Elizabeth to Forbes, William
- Forbes, William to Ford, Robert
- Ford, Robyn Louise to Formartine, Viscount (George Ian Alastair)
- Formbach, Hedwig of to Forster-Cooper, John
- Forstinger, Christine to Fortescue, Hugh, 4th Earl Fortescue
- Fortescue, Isobel Barclay to Fosburgh, Mary Benedict
- Foscari, Francesca to Foster-Towne, June Rose Jager
- Fotherby, Mary to Fowler, Peter
- Fowler, Peter Howard to Fox, Frederick Hynde
- Fox, Gardiner Guion Joseph to Fox, Samuel
- Fox, Samuel to Fox-Strangways, William Thomas Horner, 4th Earl of Ilchester
- Foxcroft, Anthony to Frampton, Robert
- Frampton, Robin Shirley to France, William Beckwith
- Franceschi, Leticia to Franco y Polo, Carmen, 1st Duquesa de Franco
- Franco, 'El Caudillo' to Franks, Zoe Gwynedd
- Frannas, Martha to Fraser, Gwendoline
- Fraser, Hannah to Fraser, William
- Fraser, William to Freeman, Winefride Alice
- Freeman-Attwood, Emily Magda to Fremantle, John Tapling, 5th Baron Cottesloe
- Fremantle, John Walgrave Halford, 4th Baron Cottesloe to French, Yvon
- Frenchette, Diana to Frick, Wilhelm
- Fricker, Edith to Fry, R. G.
- Fry, Richard to Fuller, William
- Fuller-Acland-Hood, Alexander Bateman Periam, Bt. to Furse, Samuel Alexander
- Furstenberg-Herdringen, Cecilia Gräfin von to Fürstenberg, Marie Josepha Egona Sofie Wilhelmine Joachima Maximiliane Frederike zu
- Fürstenberg, Marie Josepha Prinzessin zu to Gage, Elizabeth Estling
- Gage, Elizabeth Maria to Gairdner, Jane Elizabeth
- Gaisford, Alice Mary to Galen, Wilhelm Emanuel Graf von
- Galesi, Alessandro to Galliers-Pratt, Rupert Anthony
- Gallifet, Marguerite de to Galwey, Douglas de Burgh
- Galwey, Edith to Galwey, Robert
- Galwey, Robert Knox to Ganzoni, Mary Jill
- Gape, Emily Louisa to Gardner, Frances Margaret
- Gardner, George Henry to Garnett, Walter Hugh Stewart
- Garnett-Orme, Alice Richmond to Garron, Frederick William
- Garros, Aminta to Gascoyne, Theodosia
- Gascoyne-Cecil, Alice Laura to Gathorne-Hardy, John Stewart, 2nd Earl of Cranbrook
- Gathorne-Hardy, Julia to Gazelli di Rossana e di Sebastiano, Luisa Gazelli dei Conti
- Gazelli di Rossana, Augusto, Conti Gazelli di Rossana to Gelinas, O.
- Gell, Anne to George, William Shaw Brooke
- George-Brown, Baron, of Jevington in the County of Sussex (George Alfred) to Gevers, Susanna Gertrude Françoise
- Gewiese, George to Gibbons, William
- Gibborne, Harmon to Gibbs, Jean Frances
- Gibbs, Jennifer Susan to Gibbs, Zenda Amie Lily Sunshine
- Giberne, H.B. to Gibson, Yvonne Geogina
- Gibson-Carmichael, 10th Baronet (William Henry) to Giffard, Robert
- Giffard, Robert to Gilbert, William
- Gilberto, Marcelo Esteban to Gill, William Smith
- Gillams, Jean Rosemary Hay to Gilmour, Yvette
- Gilpin, Aline Mary de Burgh to Gise, Zeno Baron von
- Gistau y Lopez-Doriga, Ana Maria to Gladwin, Wendy Anne
- Glagow, Conrad I of, Duke of Glagow to Glasspool, Vivien Mary
- Glastonbury, 1st Lord (James) to Glenurchy, Benederaloch, Ormelie and Weick, 9th Lord (Charles William)
- Glerawly, 10th Viscount, of co. Fermanagh (Robert) to Glover, William
- Glubb, Frances Letitia to Gobert, John
- Goble, Joseph to Godolphin, William, Marquess of Blandford
- Godoy, Manuel, Duque de Alcudia to Golden, Thomas
- Golder, Charles to Goltz, unknown von der
- Golyer, A. G. B. to González-Conde y Rueda, Olivia
- González-Conde y Santiago, Irene to Goodman, Xenia Alexandra
- Goodrich, Briggs to Gordon, 5th Baronet, of Haddo, co. Aberdeen (George)
- Gordon, 5th Baronet, of Lesmoir (James) to Gordon, Darren George
- Gordon, David Esme Douglas to Gordon, James
- Gordon, James to Gordon, Margaret
- Gordon, Margaret to Gordon, Yvonne Marie
- Gordon-Canning, Maud Mary to Gore, Arthur Paul John James Charles, 7th Earl of Arran of the Arran Islands
- Gore, Arthur Ribton to Gore, Lillian May
- Gore, Louisa to Gorges, Robert
- Gorges, Robert George to Gosen, Elsie Florence
- Gosford of Market Hill, 1st Baron, co. Armagh (Archibald) to Gostwick, William, 5th Bt.
- Gostwicke, Christiana to Gould, James Aubrey
- Gould, James Charles to Gower, Violet Florence
- Gowers, Maud to Graeve, John Wallis
- Graevenitz, Anne Louise de to Graham, Iona Susan Alice
- Graham, Irene Lavender to Graham, Virginia Margaret
- Graham, Walter Gerald Cloete to Grand d'Hauteville, Wilfred Gerard Sidney, 7th Baron Grand d'Hauteville
- Grand Duchess of Russia, Aleksandra Aleksandrovna, Grand Duchess of Russia to Grant, Beatrice Elizabeth Laura
- Grant, Beatrice Helena Victoria Irene to Grant, Louise Margaret
- Grant, Lucy to Grantzau-Christe, Inger Maria Sandra
- Granville of Eye, Baron, of Eye in the County of Suffolk (Edgar Louis) to Graves, Geraldine Lucy
- Graves, Geraldine Tierney to Gray, Christopher John
- Gray, Christopher John to Gray, unknown
- Gray, unknown to Greco, Maria Benita Rosalia
- Greece and Denmark, Alexandra of to Green, Penelope Green
- Green, Percy to Greene, William George David
- Greenebank, Mary to Greenwood, Stephanie
- Greenwood, Thomas Frederick to Greig, William
- Greiner, Ottilie to Gresley, Thomas, 4th Bt.
- Gresley, Thomasine to Grey, 4th Lord, of Rotherfield (Robert)
- Grey, 4th Lord, of Ruthin (Edmund) to Grey, Elizabeth
- Grey, Elizabeth to Grey, Lillian Mary
- Grey, Lillian Muriel to Grey, William Archibald Swinton
- Grey, William de to Grierson, Janet
- Grierson, Janet to Griffin, Edwin G.
- Griffin, Elizabeth to Griffiths, Hugh Douglas
- Griffiths, Jade Jeanette to Grimston, Harriot Elizabeth
- Grimston, Helen to Grose, Virginia
- Groser, Albert to Grote von und zu Schacten, Sidonie Gräfin
- Grote, August to Gruffydd, Rhys, Lord Rhys
- Gruhn, Edwin to Gudenus, Victoria Gräfin von
- Gudera, Edlegard to Guest, Winston Frederick Churchill
- Gueterbock, Alfred to Guinness, Benjamin Grattan
- Guinness, Benjamin Hart to Guinness, Margaret Sophia
- Guinness, Maria to Guise, John, Bt.
- Guise, Louis de to Gunning, unknown
- Gunnis, Elizabeth to Gurney, William Ivan
- Gurnhill, Christopher James to Guzik, Laura
- Guzman el Bueno y Salabert, Maria Perez, Condesa de Quintanilla to Haakonsdottir, Ulfhild
- Haakonsson, Erik III 'the Lamb', King of Denmark to Habsburg, Rudolf III
- Habsburg, Rudolf IV to Habsburg-Lothringen, Erzherzog von ((?))
- Habsburg-Lothringen, Erzherzog von (Ferdinand IV) to Haddington, Countess of (Susan Jane Antonia)
- Haddo, 1st Earl of, co. Aberdeen (John Campbell) to Haga, Peter, 1st of Bemersyde
- Hagar, Anna Sophia to Haig, John
- Haig, John to Haithabu, Sigurd of
- Hake, Irma von to Haley, Siobhan Geraldine
- Halfin, Diane to Hall, Elizabeth
- Hall, Elizabeth to Hall, Sean
- Hall, Seat: Bircher to Halm-Nicola, Ilma
- Halm-Nicolai, Carlo to Hambro, Jemima Rose Amice
- Hambro, Jocelyn to Hamilton, 4th Lord (James)
- Hamilton, 4th Lord, Baron of Strabane, co. Tyrone (George) to Hamilton, Caroline Mary
- Hamilton, Caroline Mary to Hamilton, Elizabeth Anne
- Hamilton, Elizabeth Anne to Hamilton, James
- Hamilton, James to Hamilton, Julia
- Hamilton, Julia to Hamilton, Patricia May Sackville
- Hamilton, Patrick to Hamilton, Winifred Anna
- Hamilton, Winifred Grace Culling to Hamilton-Stubber, Robert
- Hamilton-Temple-Blackwood, Archibald James Leofric Temple, Earl of Ava to Hampden, William
- Hampden-Hobart, Anne Glover to Hampton, Alice Ethel
- Hampton, Alice Hannah to Hampton, Heather
- Hampton, Heaton Dudley Tilling to Hampton, Patricia Mary
- Hampton, Patricia Shirley to Hanau und Horowitz, Prinzessin
- Hanau und Horowitz, Prinzessin to Hanbury-Tracy, William Charles Frederick, 5th Baron Sudeley of Toddington
- Hanbury-Tracy-Domvile, Claud Edward Frederick to Handcock, William
- Handcock, William to Hannah, Walter Bain
- Hannam, Barnaby to Hanover, Sophia Matilda
- Hanover, Sophia Matilda, Princess of the United Kingdom to Harbord, William, 1st Bt.
- Harbord-Hamond, Anthony Philip, 11th Baron Suffield to Hardeck, Johann I von
- Hardegg auf Glatz im Machlande, Johann Graf zu to Hardinge, Phyllis Lilian
- Hardinge, Richard to Hare, Edward
- Hare, Edward Charles to Harford, Mark John
- Harford, Mark William to Harkness, William B.
- Harlacz, Samantha Leigh to Harmon, Wilford
- Harms, Anne Marie to Harold, Richard
- Harold-Barry, Aileen Mary to Harrap, Sonia Sophia
- Harraschein, Hedwig to Harris, Ida Florence
- Harris, Isabella to Harrison, Charlotte Jane
- Harrison, Charlotte Louise Monamie to Harrison, Paul
- Harrison, Paul Hilary to Hart, Harry Montgomery
- Hart, Henry to Hartig, Pia Victoria Elisabeth Gräfin von
- Hartig, Rixta to Hartopp, William
- Hartopp-Wigley, Edward to Harvey, William
- Harvey, William Coates to Hassell, Susan
- Hasselmann, Caroline Gustava Adelheid to Hastings, Winifred
- Haswell, John Grey to Haughey, Tobias John Thomas Speir
- Haughton, 1st Viscount, co. Nottingham (Thomas) to Hawker, Zuleika Jane Feilding
- Hawkes, A. to Hawley, Henry
- Hawley, Henry to Hay, Elizabeth
- Hay, Elizabeth to Hay, Margaret
- Hay, Margaret to Hay-Newton, William Drummond Ogilby
- Hay-Newton, William Waring to Hayman, Walter
- Haymen, Helen Violet Carolyn to Hayward, William Leland
- Hayward-Higham, Emma Charlie to Heald, William Hesketh
- Heale, Anthony Vernon Glen to Heathcoat-Amory, William, 5th Bt.
- Heathcote, 1st Baronet, of Hursley, Hampshire (William) to Heaton-Ellis, Sydney Thomas Edward
- Heaven y Ramirez de Arellano, Maria Guadalupe Zaara Cecilia to Hedges, William
- Hedges-Eyre, Richard to Heimrod, Wilhelm Baron von
- Hein, Catarina Maria to Hely Hutchinson, John
- Hely Hutchinson, John to Henckel von Donnersmarck, Wilhelmine Gräfin
- Henckel, Anna, Baroness von Donnersmarck to Henderson, unknown
- Henderson, Ursula to Henley, Williamsa
- Henley-Ongley, Catherine to Henry, Robert
- Henry, Robert Francis Jack to Hepworth, Sophia Catherine
- Herberstein, Alexandra Gräfin von to Herbert, Hilda Augusta
- Herbert, Irene Mary to Hereford, William of
- Herget, Maria to Herring, William
- Herring-Cooper, Harman to Hervey, Hazel Lily
- Hervey, Henry to Hesketh, Jessy
- Hesketh, John to Hessen-Darmstadt, Prinzessin von (Karoline)
- Hessen-Darmstadt, Prinzessin von (Luise Auguste) to Hessen-Kassel, Prinzessin von (Elisabeth Charlotte Alexandra Marie Luise)
- Hessen-Kassel, Prinzessin von (Juliane Luise Amelia) to Hetsko, Victoria Rene
- Hettinger, Caroline to Hewson, Susanna
- Hewster, Humphrey to Hibbert, Hugh Thomas
- Hibbert, Hugh Washington to Hicks, unknown
- Hicks, William to Hight, James
- Hight, Jane to Hill, Edward
- Hill, Edward Burrow to Hill, Patricia Irene
- Hill, Patricia Irene Wilmot to Hillier, S. R.
- Hillingdon of Hillingdon, 1st Baron, co. Middlesex (Charles Henry) to Hindmarsh, Vivan
- Hinds, Annette Mary Audley to Hiscox, William Joseph
- Hishon, Joanna to Hoare, Maud
- Hoare, Melanie Beatrix to Hobart, William Henry
- Hobart-Grimston, Rose Armatrude Frances to Hobson, Valerie
- Hoby, Anne to Hodgson of Astley Abbotts, Baron, of Nash in the County of Shropshire (Robin Granville)
- Hodgson, (?) to Hoensbroech, Ulrike von und zu
- Hoerdeland, Eirik of to Hogg, William
- Hogge, Emily Katherine L'Estrange to Hohenlohe, Amalia
- Hohenlohe, Andreas von to Hohenlohe-Langenburg, Auguste Karoline Prinzessin zu
- Hohenlohe-Langenburg, Auguste Karoline Prinzessin zu to Hohenlohe-Schillingsfürst, Viktor I 1st Fürst zu
- Hohenlohe-Schillingsfürst, Viktor Moritz Karl, 1st Fürst von Corvey to Hohenlohe-Öhringen, Max Anton Karl Prinz zu
- Hohenlohe-Öhringen, Max Hugo Paul Friedrich Karl Egon zu to Hohenzollern, Christian-Sigismund Louis Ferdinand Kilian
- Hohenzollern, Christine von to Hohenzollern, Xenia Sophie Charlotte Cecilie
- Hohenzollern-Berg, Marie Katharina von to Hohenzollern-Sigmaringen, Wilhelm Fürst von
- Hohler, Adrian Frederick to Holden, William
- Holder, Egbert James Neville to Holland, Thomas
- Holland, Thomas Lindsey to Holman, Vivien
- Holme of Cheltenham, Baron, of Cheltenham in the County of Gloucestershire (Richard Gordon) to Holroyd, Wilfrid Andrew
- Holroyd-Smyth, Alice Isabel to Holstein-Itzehoe, Luitgarde von
- Holstein-Ledreborg, Antonia Gräfin von to Holt, William Durning
- Holt-Schooling, John to Home, Margaret
- Home, Margaret to Hood, Jane Sarah
- Hood, Jean Marian to Hope Johnstone, Isabel
- Hope Johnstone, James to Hope, Letitia Bedella
- Hope, Lewis Anstruther to Hopkins, Mary
- Hopkins, Mary to Hopson, Rene Jade
- Hopson, Sandra Daphne to Hore, Walter
- Hore, Walter to Horne, Maud Mary
- Horne, Michael to Horsnell, R. N.
- Horst, Adrian Maximilian van der to Hoste, Wyndham Horatio Nelson
- Hotblack, Herbert to Hounsell, Sally
- Houpe, Christian to Hovell tot Westerflier, Thomas Alexander Willem Maria van
- Hovell-Thurlow, Thomas John to Howard, Catherine
- Howard, Catherine to Howard, Francis Philip, 2nd Baron Howard of Penrith
- Howard, Francis, 1st Earl of Effingham to Howard, Kenneth
- Howard, Kenneth Alexander, 1st Earl of Effingham to Howard, Robert, Viscount Morpeth
- Howard, Robin Malcolm Anderson to Howe, Elspeth Rosamund Morton
- Howe, Emanuel to Howie, John Neil
- Howie, John Ronald to Hoyos, Gräfin von (Marie-Antoinette)
- Hoyos, Heinrich to Hubble, Jean Huddleston
- Hubeb, Helena to Hudson, Zoe Louise
- Hue, Agnes Lucy to Hughes, Grisold
- Hughes, Gwendoline Loftus to Hulbert, Robert
- Hulbert-Powell, Charles George Lacy to Hume-Loftus, Nicholas, 2nd Earl of Ely
- Hume-Spry, Angela Doris Manners to Hungerford, Lucy
- Hungerford, Margaret to Hunt, Olive Margaret Ward
- Hunt, Patricia Denise to Hunter-Blair, Walter Charles
- Huntingdon, 10th Earl of (Francis) to Hurman, Hannah
- Hurn, Belinda Ann to Hutcheson, Maud
- Hutchesson, Amy de Beauvoir to Hutton, Margaret Jean
- Hutton, Margaret Vere to Hyde, Zachary Senior
- Hyde-Thompson, Damaris Joan to Ilchester, 9th Earl of (Maurice Vivian de Touffreville)
- Iles, Kate Marjorie to Ingaldesthorpe, Joan
- Ingall, Francis Lenox to Ingoldsthorpe, Thomas
- Ingram, (?) to Innes, Judith Caroline Traill
- Innes, Karen Michelle to Ipswich, Viscount (William Henry Alfred)
- Irby, 10th Baronet, of Whapload and Boston, co. Lincoln (Gerald Howard Boteler) to Irby, Richard Peter Anthony Wallace
- Irby, Richard Wilfred to Ironside, Francis
- Ironside, Frank Doig to Irving, William of Kirkconnell
- Irwin, 1st Baron, of Kirby Underdale, co. York (Edward Frederick Lindley) to Isenburg-Budingen-Wachtersbach, Wolfgang-Ernst Ferdinand Heinrich Franz Karl Georg Wilhelm Prinz zu
- Isenburg-Büdingen, Sibyille Juliane von to Ives, Violet Maud Cecil
- Ivic, Ursula to Jackson, Henrietta Camilla
- Jackson, Henrietta Pamela Mary to Jacob, William Snodgrass
- Jacobs, Alison Mary to Jahrig, Melanie Lissa
- Jain, Patricia Rose to James, Martha
- James, Mary to Janner, Ruth
- Jans, Magdalena to Jay, Stephen Octavius
- Jayes, Andrew Patrick Harris to Jeffreys, Susannah Elizabeth
- Jeffreys, unknown to Jenkins, William
- Jenkinson, 11th Baronet (George Samuel) to Jennings, William
- Jennings-Bramly, Amy to Jersey, Jane
- Jerusalem, Almaric I of to Joass, Mary
- Jobbins Wells, Samantha Markland to Johnsen, William Olaus Charles
- Johnson, 'The Belle of Linthorpe' to Johnson, Lucinda
- Johnson, Lucy Charlotte Acland to Johnston, Celia Anne
- Johnston, Charity to Johnston, William Archibald
- Johnston, William Hamilton Hall to Johnstone, Sarah
- Johnstone, Sophia to Jones, Anna Maria
- Jones, Annabel Louise Cracroft to Jones, Gwendoline Margaret Frances
- Jones, H. R. to Jones, Miranda Frances Louise
- Jones, Miria Raewyn to Jones, William Roy
- Jones, William Sydney to Jowett, Peter John
- Jowitt, 1st Baron (William Allen) to Jud, Xenia Georgievna
- Judd, (?) to Jülich, Wilhelm IV Graf von
- Jülich, Wilhelm IV von to Kantakouzenos, Theodoros Palaiologos
- Kantner, Katharina to Kavanagh, Eleanor
- Kavanagh, Elinor to Keane, Mary
- Keane, Mary Jane to Keene, T. P.
- Keenlyside, Diana Christina to Keith, Mary
- Keith, Mary to Kellogg, Laura Malinda
- Kellogg, Leroy to Kelly, Mirabel Magdalen
- Kelly, Natasha Mary Gabrielle to Kemp, William Finnie
- Kemp-Gee, Bernard to Kennard, Daniel James
- Kennard, David to Kennaway, Susan
- Kennedy of The Shaws, Baroness, of Cathcart in the City of Glasgow (Helena Ann) to Kennedy, Gilbert
- Kennedy, Gilbert to Kennedy, Mary Johanna
- Kennedy, Mary Kerry to Kent, Countess of (Joan)
- Kent, Cuthred of to Keppel, Elizabeth Mary Gertrude
- Keppel, Ellice to Kerchhove, Jan, Lord of Henvliet
- Kerchoff, M. J. to Kerr, Elizabeth Anne
- Kerr, Elizabeth Daphne to Kerr, Sarah Anne
- Kerr, Sarah Margaret to Kershaw, William Ronald
- Kerslake, Caroline Julia Chenevix to Kevall, Honor
- Kevelioc, Hugh, 3rd Earl of Chester to Kidd, William Ennis
- Kiddell, Jamie Michael to Kilgour, unknown
- Kilkelly, Charles Edward to Kinder, William
- Kinderley, Cornelia to King, Gerald FitzGerald
- King, Gerald Rene Wingfield to King, Phyllis Edith
- King, Phyllis Mary to Kingdom, Mary
- Kingdon, Agnes to Kingscote, Mary Holford
- Kingscote, Mary Sophia to Kingston, Eleanor Mary Barbara
- Kingston, Elsie to Kinnaird, Emily Cecilia
- Kinnaird, Frances Anne Georgina to Kintyre, Archibald of
- Kip, Edith to Kirkland, William John
- Kirkley, 1st Baron, of Kirkley, co. Northumberland (William Joseph) to Kitchiner, Thomas William
- Kitching, Charles Henry to Kleve, Wilhelm von
- Klewin, Barry W. to Knatchbull, Beatrice Wadham
- Knatchbull, Bridget to Knatchbull-Hugessen, Ross Adrian
- Knatchbull-Hugessen, Sally Anne to Knight, Thomas Andrew
- Knight, Una to Knollys, William, 1st Earl of Banbury
- Knoop, Barbara Helen de to Knox, Thomas Uchter Caulfield, Viscount Northland
- Knox, Thomas, 1st Earl of Ranfurly to Komarov, Maria
- Komisarjevsky, Theodore to Kottulinsky, Karl Kunata Graf
- Kottulinsky, Katharine to Krummedige, Margaret
- Krummenacher, Anna to Kuti, Istvan
- Kutter, Johanna to La Malletière, Seigneur de (Richard)
- La Marche, Hugh X to Lacoste Lareymondie, Solene de
- Lacour, Adelaide Amelie to Laing, Joan
- Laing, John Edward to Lamb, William, 2nd Viscount Melbourne
- Lamballe, Prince de (Louis Alexandre Joseph) to Lambert de Cambray, Paulette
- Lambert, (?) to Lambert, Robert
- Lambert, Robert William to Lambton, Susan
- Lambton, Susan Mary Anne to Lancaster, William, Lord of Kendal
- Lancastere Soldana, Adeline Louisa Maria de to Lane, Blanche Emma
- Lane, Bradley to Lane, Withy
- Lane-Davies, Alfred to Langford-Sainsbury, Thomas Hugh
- Langham, (?) to Lanty, Leon
- Lanuza y Ayensa, Adela de to Lascelles, Constance Gertrude
- Lascelles, Constance Mary to Lascelles-Ward, Nevill
- Laselve de Montluisant, Anne-Marie de to Lattin, Patrick
- Latymer, 5th Baron (Francis Burdett Thomas) to Laurie, Walter, 3rd Bt.
- Laurie, William to Law, Kate
- Law, Lucinda to Lawrence, Eleanor
- Lawrence, Elizabeth to Lawson, Sherlene Jan
- Lawson, Sonya to Le Fanu, William Richard
- Le Fevre, Anna Maria to Leach, Wendy
- Leachman, Henry to Leatham, Victoria Diana
- Leathem, Harriet Barbara to Ledebur-Wicheln, Vendeline von
- Lederman, Alice Marie Anne Irma to Lee, Wilfred
- Lee, Wilfred to Leese, William Hargreaves, 2nd Bt.
- Leeson, Alister Curtis to Legge, Heneage
- Legge, Heneage to Legh, William John, 1st Baron Newton
- Legrain, Emilienne to Leigh, Susan
- Leigh, Susannah to Leinster, Murchad of
- Leintemburg, Helene Letterer von to Lemieux, Gerrard
- Lemke, Lisbeth to Lennox, William Robert
- Lennox-Boyd, Alan George Simon to Lequerre, unknown
- Lequito di Assab, Alejandro to Leslie, John Randolph Shane, 3rd Bt.
- Leslie, John, 11th of Balquhain to Lethbridge, Gertrude Elizabeth
- Lethbridge, Gertrude Ethel Mary to Lever, Robert
- Lever, Robert to Leveson-Gower, Winifred van Allen Phillips
- Levet, Eva to Lewes, Thomas
- Lewies, Hilda May to Lewis, Melinda Anne
- Lewis, Mercy to Leyland, Tom Naylor
- Lezard, Hilda Susan Ellen to Liddell, Lillian Mary Harriet Diana
- Liddell, Lionel Arthur to Liechtenstein, Fürst von und zu (Franz I)
- Liechtenstein, Fürst von und zu (Franz Joseph II) to Liechtenstein, Wolfgang Prinz von und zu
- Liedekerke de Pailhe, Henriette de to Lillie, Dorothy Margaret
- Lillingston, Alan to Lindemann, Frederick Alexander, 1st and last Viscount Cherwell
- Linden, Anya to Lindsay, Archibald Thurston Thomas
- Lindsay, Audrey Lavinia to Lindsay, Isobel
- Lindsay, Isobel to Lindsay, Nicola A.
- Lindsay, Nigel Crawford to Lindsey, unknown
- Lindsley, Barbara Ruth Mary to Lippe, Wilhelm Prinz zur
- Lippe-Alverdissen, Hedwig Luise zur to Liria y Xerica, 8th Duque de (Jacopo Luis Francesco Pablo Rafael)
- Lis, Elizabeth to Lister-Kaye, Sarah
- Lister-Kaye, Sorrel Deidre to Livermore-Seilliere, Constance
- Liverpool, 1st Earl of (Cecil George Saville) to Llewellyn, Zara Marie-Louise
- Llewellyn-Davies, Annie Patricia, Baroness Llewelyn-Davies of Hastoe to Lloyd, George Ambrose, 1st Baron Lloyd
- Lloyd, George Edwin to Lloyd, William
- Lloyd, William to Lobkowicz, Susanne von
- Lobkowicz, Theresa von to Locker, William
- Locker-Lampson, Frederick to Lockyer, Victoria Robina Chenevix
- Locock, Frances to Loeffler, Margaret
- Loen, David de to Logan, Roderic Walter
- Logan-Home, Ferdinand Cospatrick to Long, Antoinette Sara Frances Sibell
- Long, Arethusa Marianne to Long, James
- Long, James to Long, Sydney Charlotte Anne
- Long, Sylvia Carnegie to Longford, Viscount (Christopher)
- Longley, Angela Kathleen to Lopes, Sarah Violet
- Lopes, Susan Ludlow Cordelia to Loringhoven, Leon Freytag Baron von
- Loris-Melikov, Alexander to Lorraine-Brionne, Marie Louise de
- Lorraine-Elboeuf, Anne Elizabeth de to Loudon, Valerie van
- Loudoun, 11th Earl of (Charles Edward) to Lovelace, unknown
- Loveland, Dorothy to Lowe, Frank
- Lowe, G. A. to Lowry-Corry, Louisa Mary Ann Julia Harriet
- Lowry-Corry, Margaret to Lowther, Margaret
- Lowther, Margaret to Lubbock, Catherine Fiona
- Lubbock, Cecil to Lubersac, Pierre de
- Lubersac, Raoul de to Lucas, William Tindall
- Lucas-Lane, Henry to Lucy, William Walrond
- Ludbrook, Bertha to Lumley, Richard, 2nd Earl of Scarbrough
- Lumley, Richard, 4th Earl of Scarbrough to Lupton, Francis
- Lupton, Francis Ashford to Lusson, Walter
- Lustrac, Anne-Marie de to Luxton, Victoria Helene
- Luzard, Fanny to Lynch, Eliza Matilda
- Lynch, Elizabeth to Lyon, Georgina Mary Coghill
- Lyon, Giles Roderick to Lyons, Charles
- Lyons, Charles Bethel to Lyttelton, Diana Maud
- Lyttelton, Edith to Löwenstein-Wertheim, Juliane Dorothea zu
- Löwenstein-Wertheim-Freudenberg, 6th Fürst zu (Udo VI) to Löwenthal-Maroicic von Madonna del Monte, Peter Bruno
- Lübbert, unknown to Macaulay, Olive Maud
- Macauley, Alastair Mark Justin to MacDermott, William
- Macdiarmid, Fiona to Macdonald, George Browne
- Macdonald, George Ranald to Macdonald, William
- Macdonald, William to Macfarlane, James Richard
- Macfarlane, Jane to Machin, Thomas
- Machintosh, Christina to Mackay, Æneas Simon, Master of Reay
- Mackay-Lewis, Gemma Elizabeth to Mackenzie, Georgiana Elizabeth
- MacKenzie, Geraldine to Mackenzie, William, 5th Earl of Seaforth
- Mackenzie, Yvonne to Mackintosh, Roderick 'Og'
- Mackintosh, Roderick Og to Maclean, Robert Donald Douglas
- Maclean, Roderick to Maclntyre, Kathleen Muriel
- Macloughlin, D. to MacNaghten, Melville Leslie
- Macnair, Andrew Aitken to Macpherson-Grant, Victoria
- Macphie, Heather to Madison, Sverre Reidulf
- Madisson, Catherine to Magri, Tariah Ashlei Christian
- Magruder, Ernest to Maille, Roland de
- Mailly, Amanda de to Maistre, Viane de
- Maitland Biddulph, Anthony Nicholas Colin to Maitland-Carew, Rosalind Averil
- Maitland-Heriot, Andrew Agnew to Malby, Ursula
- Malcher, Jane to Malharé, Leila Essa Bey
- Malicki, Christina to Maltby, William John
- Maltese, Lilikoi to Mander-Jones, Susan Elizabeth
- Manders, Constance Elizabeth Mary to Manners, Elizabeth
- Manners, Elizabeth to Manningham-Buller, Susannah Jane
- Mannion, Araminta Tanzy Ophelia to Manson, unknown daughter
- Mansour, Anna Luíza to Marcello del Majno, Vendramina
- Marcet, Alexander to Marenzi, Yasmine Ella Cressida Lavigna Maria, Gräfin von Tagliuno und Talgate, Markgräfin von Val Oliola, Freiherrin von Marenzfeldt und Scheneck
- Marescaux, Adolphe to Marjoribanks, Stewart
- Mark und Kleve, Adolf III Graf von der to Marler, Geoffrey
- Marles, Alys Mair to Marrion, Pauline
- Marriot, Amanda to Marsh, William
- Marsh-Dunn, Agnes Frances Jean to Marshall-Andrew, Josephine Mary
- Marshall-Cornwall, James Handyside to Martin, Anne
- Martin, Anne to Martin, Margaret de Carteret
- Martin, Margaret Mary Hester to Martinez y Monasterio, Isabel
- Martinez, Angela Haden to Maslin, Suzanne Lesley
- Maslinski, Edward S. A. Z. to Massey, Jonathan David Orgill
- Massey, Laura Helena Ruth to Massy, Caroline
- Massy, Catharine to Massy, Helen Blanche
- Massy, Helen Clare to Massy, Mollie
- Massy, Muriel Alexander to Masterson, Winnifred
- Masterton, Gertrude to Mathis, Tom
- Mathy, Marie to Mattyasovszky-Zsolnay, Nicholas de
- Maturin, Anna Augusta to Maude, Robert William Henry
- Maude, Robert, Bt. to Maurer, Stephane Georges
- Maureward, Philippine to Maxwell, Anne
- Maxwell, Anne to Maxwell, Rory Nairne
- Maxwell, Samuel to Mayfield, Thomas Noel
- Mayger, Jane Florence to Mayrhofer, Luise Marie
- Mays-Smith, Katharine Elizabeth to McCall, Wilhelmina Elizabeth
- McCallie, Alan to McCausland, Violet May
- McCay, John to McConnell, Robert John, 1st Bt.
- McConnell, Robert Melville Terence, 3rd Bt. to McCoy, Charles Philip
- McCoy, Charlotte to McCrorie, William
- McCrystal, Amanda Elizabeth Singleton Cayley to McDonnell, Flora Mary
- McDonnell, Frances Rose to McDouall, Marion Maud
- McDouall, Marlis to McEntee, William Charles
- McEvers, Mary Bache to McGlashan, Robert Lachlan
- McGlasson, James to McIntyre, William
- McIrvine, Nicola to McKenna, William Columban
- McKenny, 1st Baronet (Thomas) to McLaren, John
- McLaren, John Andrew to McLennan, Peter E.
- McLennon, (?) to McNab, Robert Norman Graham
- McNabb, Helen to McNulty, Sarah Lilian
- McOmmond, Marjorie to Meade, Elizabeth
- Meade, Elizabeth to Meautys, Thomas
- Meaux, Anne de to Mecklenburg-Schwerin, Woizlawa-Feodora Herzogin von
- Mecklenburg-Stargard, Anne von to Medlicott, Yvonne
- Medowe, Gryssell to Meier-Preschany, Mark
- Meighan-Lovett, Cecily to Melbourne, William Fiske
- Melby, Hilda Marion Radcliffe to Melton, Royna Jean
- Melun, Bouchard de to Mendez de Vigo y Perez-Seoana, Marta
- Mendez de Vigo, Katharina Aglae Franziska Maria to Menzies, Jean Campbell
- Menzies, Jennifer Ruth to Mercer Nairne Petty-FitzMaurice, Selina Polly Dawson
- Mercer Nairne, Barbara to Meriet, John de
- Merindol, Daria Antonia Maria de to Merton, Sallyann
- Merton, Stephanie to Metham, unknown de
- Metheril, Sarah to Meyer, Kristy Lynn
- Meyer, Lindi Elaine to Michaelis, Dominic
- Michahelles, Daniela Primola to Middleton, John
- Middleton, John to Milbank, Jane
- Milbank, John Gerald Frederick to Miles, Guy Martin
- Miles, Harriott Ellin to Millar, William Mitchell
- Millard, Anna Maria to Miller, Juliette
- Miller, Julius to Milligan, William
- Millikin-Napier, Aymée Elizabeth Georgiana to Milman, William George, 2nd Bt.
- Milnaric, David A. to Milward, Robert
- Mincer, Daphne Isabel to Minchin, Jessie
- Minchin, Jessie May to Minchin, William
- Minchin, William Allan to Mitchell, Gladys Ismay
- Mitchell, Gwendolen Charlotte Julia to Mitton, Wynetta
- Miville, Edwina Gillian to Mojaisky, Pamela
- Mojtehedzadeth, Alexander to Molloy, William John, Baron Molloy
- Molo, Bettina Elizabeth von to Monaco, Seigneur of (Honoré I)
- Monaghan, Catherine to Moncreiff, Mary Lillias
- Moncreiffe, 11th Baronet (Rupert Iain Kay) to Money, William
- Money-Coutts, Alexander Burdett to Monsell, William, 1st Baron Emly
- Monsempès, Amande to Montagu of Beaulieu, 3rd Baron (Edward John Barrington)
- Montagu of Boughton, 1st Baron (Edward) to Montagu, Philip James
- Montagu, Ralph, 1st Duke of Montagu to Montalivet, Jean Pierre de
- Montan, Christina Eva to Montfort, Laure de
- Montfort, Louisa Rosamond de to Montgomerie, Jane
- Montgomerie, Jane to Montgomery, Caroline Jean
- Montgomery, Carolyn Winifred to Montgomery, William Stone
- Montgomery-Cuninghame, Alice Frances Denison to Monypenny, William
- Moodie, (?) to Moore, Brooke Alan
- Moore, Bruce to Moore, Frawnch
- Moore, Frederic to Moore, Margaret
- Moore, Margaret to Moore, Thomas
- Moore, Thomas to Moravia, Wladislaw of
- Moravie, Jodocus Markgraf von to Morell y Orlandis, Miguel
- Morell y Rovira, Fausto to Morgan, Grace Price
- Morgan, Grace Talcott to Morison, Jessie Eliza
- Morison, Jill Trench to Morosini, Michael
- Morot de Gresigny, Françoise to Morris, Jane
- Morris, Jane to Morrison, Hugh
- Morrison, Hugh to Morrogh, William Plowden
- Morrough, (?) to Morton, Lesley Anne
- Morton, Louise Jean to Moss, Victoria Elizabeth
- Mosse, Lorenzo N. to Mostyn, Philomena Mary Cecilia
- Mostyn, Polly to Mould, Rowan Patricia
- Moulden, Henry Albert to Mountcastle, 9th Baron, co. Tyrone (James)
- Mountchesney, Jane to Moyano y Alverez de Toledo, Santiago
- Moyarta, 1st Baron (Daniel) to Mulazzano con Faviano, Conte di (Giovanni)
- Mulcocke, Christine to Mullins, Winifred Claire
- Mullion, Annabel to Munro, Henrietta Maria
- Munro, Henry Noel to Mure, Margaret
- Mure, Marie to Murray, Alexander, 7th Baron Elibank
- Murray, Alexander, 8th Baron Elibank to Murray, Constance Euphemia Woronzow
- Murray, Constance Margaret to Murray, Hamish William Ian Algernon
- Murray, Hannah to Murray, Katherine
- Murray, Katherine to Murray, Rhoda Dorothy
- Murray, Rhona Evelyn Hay to Murray-Aynsley, Susan Jane
- Murray-Brown, C. R. to Musteca, Warren John
- Musters, Anne to Márkus, Isaac Simon
- Mâle, Louis II, Comte de Flandre to Nangle, Walter Chidiock
- Nani-Mocenigo Johnsen, Michael Robin to Napier, William John, 9th Baron Napier of Merchistoun
- Naples and Sicily, Charles I of to Nassau de Zuylestein, William, 2nd Earl of Rochford
- Nassau in Saarbrücken, Philip von to Nassau-Ottweiler, Sophie Amalie Gräfin zu
- Nassau-Saarbrücken, Anne Amelia von to Nast, William F.
- Nathan, Frank Benjamin to Neale, Martha
- Neale, Michael Gordon to Neild, Samuel Nevill
- Neile, Maria Elizabeth Charlotte to Nelson, Johnothan
- Nelson, Judith Constance to Nepean, Winifred Diana
- Nepean-Gubbins, Hugh Power to Neumann, Renate
- Neumann, Roxanna Doria to Nevill, Sophie Alice Augusta
- Nevill, Sylvia Eleanor to Neville, George, 10th Lord Abergavenny
- Neville, George, 11th Lord Abergavenny to Neville, Ralph, 4th Earl of Westmorland
- Neville, Ralph, Lord Neville to Newburgh, Stephanie Anne de Beauharnis
- Newburn, Robert de to Newman, Henry Forrest Gordon
- Newman, Hilda Annie to Newton, Charlotte Elizabeth Sarah
- Newton, Clara to Nicholas, Sally
- Nicholas, Sarah Joanna Kathleen to Nicholson, Mary Maria
- Nicholson, Matthew James to Nicolis, Valentina
- Nicoll, Anne to Niel, John
- Nield, Ada Marian to Nithsdale, Lord of (William)
- Nitzschke, Walter to Nobbs, Herbert
- Nobbs, Herbert to Noble, Zita Mary
- Noblet la Clayette, Arnaud Maie Octave Xavier de to Noel, Gerard Baptist
- Noel, Gerard Cecil to Noel-Baker, Philip John, Baron Noel-Baker
- Noel-Buxton, 1st Baron (Noel Edward) to Nordheim, Otto II Herzog von
- Nordmark, Dietrich Markgraf von to Normandie, Hedwig de
- Normandie, Henry 'the Young King' to North, Brownlow John Frederick
- North, Brownlow John Jarvis to North, William Henry John, 11th Lord North
- North, William Jonathan Frederick, 2nd Bt. to Northway, Victoria Alexis
- Northwick of Northwick Park, 1st Baron, co. Worcester (John) to Norwich, Walter de
- Norwood, Anna to Nugent, Catherine Anne
- Nugent, Cecilia Henriette Catherina to Nutting, Harold Stanmore, 2nd Bt.
- Nutting, Helen Alice Wyllington to O'Brien, Edward Cecil
- O'Brien, Edward Donough to O'Brien, Teige
- O'Brien, Teige to O'Connor, Fanny
- O'Connor, Fearga Victoria Mary to O'Dwyer, Philip
- O'Farrell, Aidan Thomas to O'Grady, Jane Stewart
- O'Grady, Jeanie to O'Hara, William
- O'Hare, Christina to O'Neill, Shane Sebastian Clanaboy
- O'Neill, Sibyl to O'Sullivan, ånone Venetia
- O'Toole, Marian to Obolensky, Valerian
- Obolensky-Neledinsky-Meletzky, Sergei to Odiel, Maria de la Ascuncion Solange de
- Odingsells, Edmund de to Offaly, Lord of (Thomas)
- Officer, Angela Margaret Jervis to Ogilvy, Dorothy
- Ogilvy, Dorothy Margaret to Ogilvy, William, 8th Lord Banff
- Oginski, Michael-Bogdan to Oldenburg in Old Bruchhausen, Wilbrand IV von
- Oldenburg in Oldenburg und Delmenhorst, Hedwig von to Oldenburg, Johann IV, Count of Oldenburg
- Oldenburg, Johann XI Graf von to Olenski, Wladyslaw
- Olesen, Ingrid Patricia to Oliver, Yvonne Avril Catherine
- Oliver-Bellasis, Anne Mary to Oneto, Simona di San Lorenzo
- Ong, Boon Bah to Oppenheimer, Lena
- Oppermann, Elsie Julie to Orde-Powlett, William
- Orde-Powlett, William George Algar, 5th Baron Bolton of Bolton Castle to Orléans, Elisabeth Charlotte d'
- Orléans, Emmanuel to Orléans-Bragança e Wittelsbach, Rafael, Principe de Orléans-Bragança
- Ormale, Bernard d' to Ormsby, Mary Dorothy
- Ormsby, Mary Edith to Orr-Ewing, William, 2nd Bt.
- Orr-Lewis, 1st Baronet (Frederick) to Osborn, Wendy Elizabeth Evelyn
- Osborne of Kiveton, 10th Baron, co. York (George Godolphin) to Oseborne of Dunblane, Viscountess (Bridget)
- Oseburnham, Richard to Ottaviano, Simonetta d'
- Ottely, Adam to Ow, Ursula von
- Ow-Wachendorf, Agnes von to Owens, Tom Orton
- Owers, Kevin to Packe, William James
- Packer, Elizabeth to Page, William Lionel
- Page-Blair, John to Paget, Elsie
- Paget, Emily to Paget, Rosaline Louise
- Paget, Rose to Pakenham, Kevin John Toussaint
- Pakenham, Kia Louise to Palk, Wilmot Lawrence Lancelot, 9th Bt.
- Palka, Alberta to Palmer, Elizabeth
- Palmer, Elizabeth to Palmer, Mary
- Palmer, Mary to Pamer, Elizabeth
- Pampararo, Giuliana to Parc, Segolene du
- Parcevaux, Chantal de to Parker, Anne
- Parker, Anne to Parker, John
- Parker, John to Parker, Yvonne Marie
- Parker-a-Morley-Long, Martha to Parma, Marie Francesca di
- Parma, Marie Louise di to Parr, William, 1st Lord Parr of Horton
- Parr, William, 1st Marquess of Northampton to Parsons, James
- Parsons, Jane to Pascoe, William John
- Pascual del Riquelme y Echevarria, Maria de la Conception to Paterson, Joanna Margaret Jardine
- Paterson, John to Patterson, William
- Patterson-Hunter, Elizabeth to Paulet, William
- Paulet, William to Pawlikowski, Wanda
- Pawlina, Ewa to Peachey, John, 2nd Baron Selsey
- Peachman, Marie-José Antoinette to Pearlman, Zipporah
- Pears, Anne to Pearson, Zachariah Charles
- Pearson-Gregory, Lettice to Pedel, Lyn Venning
- Pederson, Jody to Peel, Winifred
- Peele, Ann to Pelham, Judith
- Pelham, Judith to Pellew, unknown wife
- Pelliott, Charles, Sieur de la Garde to Penfold, Victoria Susan Linzee
- Pengelly, Cleone St. Quentin to Penny, Wilfred
- Pennybacker, Flora Mary to Pepys, Emily
- Pepys, Eric Courtenay to Perceval, Elizabeth Margaret
- Perceval, Elizabeth Sarah to Percy, Earl (Henry Algernon George)
- Percy, Edith to Perenyi, Maria
- Perepeczko, Andrew to Perrot, Victor
- Perrott, 6th Baronet (Herbert Charles) to Persson, William Michael Dermot
- Pert, Bebe to Peters, Thomas
- Peters, unknown to Petre, Diana
- Petre, Diana Audrey Constance to Petre, William
- Petre, William Bernard to Peyroux, Solange du
- Peyster, Arent Schuyler de to Pfeiffer, Hermann Horst
- Pfeil und Klein-Ellguth, Ada Gräfin von to Philipps, Jean Meriel
- Philipps, Jeremy Hew to Phillipps, Thomas March
- Phillips de Lisle, Agnes Henriette Ida to Phillips, Roberto
- Phillips, Robin Francis, 3rd Bt. to Phipps, Lilian Agnes
- Phipps, Lorna to Piciotto, Nora
- Pick, Alexandra Gay to Pierre, Mary
- Pierredon, Geraud Michel, Comte de Pierredon to Pigot, Richard
- Pigot, Richard to Pilars, Wieslaw Piotr
- Pilars, Wladyslaw Josef to Pincke, Elizabeth
- Pinckney, Alice to Pisani, John George
- Pisarovic, Gisela to Pitts, Winifred
- Piwonka, Susan Jane to Plato, Gisela von
- Platt of Writtle, Baroness, of Writtle in the County of Essex (Beryl Catherine) to Plettenberg, Friedrich Graf von
- Plettenberg, Georg Felix Hubertus Graf von to Plouviez, Polly
- Plowden, Alexander Edward Stuart to Plumer, William
- Plummer of St Marylebone, Baron, of the City of Westminster (Arthur Desmond Herne) to Poccianti, Roberto
- Poccii, Anna Maria Gräfin von to Poland, Katherine of
- Poland, Kenneth Gordon to Polhill, John Bosanquet
- Polhill-Turner, Emily Frances to Polotzk, Sophie of
- Polska, Zofia to Pons, Miguel Bertram Eduardo
- Ponsar, Annemarie to Ponsonby, Louisa Susan Cornwallis
- Ponsonby, Mabel to Poole, Elizabeth
- Poole, Elizabeth to Pope, Margaret Elizabeth
- Pope, Margery Vera Ernle to Portal, Wyndham Spencer, 1st Bt.
- Portanet y Cabello, Eduardo to Porter, William
- Porter, William to Portugal, João V de
- Portugal, João VI de to Potter, John
- Potter, John Gerald to Pounfreth, William de
- Pountney, John to Powell, Redvers J. B.
- Powell, Richard to Power, William
- Power-Lalor, Caroline Evelyn to Poynings, Thomas, 5th Lord St. John of Basing
- Poynter, Agnes to Poyntz, John David Pierrepont
- Poyntz, John Gregory Newdigate to Poë, Mary
- Poëze d'Harambure, Jean, Marquis d'Harambure to Pratt, Susan
- Pratt, Sybil Madeline Georgina to Prendiville, Susan
- Prenosil, Anna to Preston, John, Lord Tara
- Preston, Jonathan to Preußen, Friederike Sophie Wilhelmine Prinzessin von
- Preußen, Friederike Wilhelmina Luise Amalie Prinzessin von to Preußen, Prinzessin
- Preußen, Prinzessin to Price, H. Lestor
- Price, Hamish Dudley to Pridham, Mary Simpson
- Pridmore, George Cecil to Pringle, unknown
- Prinkley, John to Probyn, Leslie
- Procope, Yvonne to Prowse, Nicholas Richard Barrington
- Prowse, Rachel Emily to Pugh, Judith Alexandra Anne
- Pugh, Karen Beverley to Purcell, Margaret
- Purcell, Margaret to Putland, W.
- Putley, Eva Miriam Lancaster to Pym, Marion
- Pym, Marjorie Florence to Quadt, Xaverius
- Quaglia, Frederica to Quicke, Gwladys Eleanor
- Quickswood, 1st Baron, of Clothall, co. Hertford (Hugh Richard Heathcote) to Quintal, Arthur William Henry
- Quintal, Atkins to Quintal, Jacob Robert
- Quintal, Jade to Quintal, Sarah Clara
- Quintal, Sarah Emily to Radcliffe, Eliza Matilda Mary
- Radcliffe, Elizabeth to Radziwill, Ferdinand
- Radziwill, Flora to Ragnwald, unknown, Jarl of Ragnwald
- Raho, Maria de to Ram, Winifred
- Ramage, Elizabeth Mary to Ramsay, Grace Murray
- Ramsay, Gwladys Marie de Grasse to Ramsden, Frank
- Ramsden, Frederick William to Randolph, William Frederick Herbert
- Randow, Elsie von to Rasch, Simon Anthony Carne
- Rascia, Grand Zupan of (Stephen) to Rauch de Nyék, Maria Alexia Freiin
- Rauch, Gustav von to Rawdon, Sydney Nobbs
- Rawdon-Hastings, Alice Elizabeth to Rayden, William Markett
- Raye, Frances to Read, William Edward
- Reade, 1st Baronet, of Brockett Hall, co. Herts (John) to Rechteren-Limpurg-Speckfeld, Rudolf zu
- Reck, Isabelle Ada Louise Langton to Reece, William
- Reece-Jones, Eileena Jane to Reeve-Tucker, T. S. W.
- Reevely, Desmond to Reid, Dorothy Hungerford
- Reid, Edward James, 2nd Bt. to Reilly, Michael
- Reilly, Michael Augustine to Renesse, Theodore de
- Renfrew of Kaimsthorn, Baron, of Hurlet in the District of Renfrew (Andrew Colin) to Rethel, Louis of
- Rethy, Alexandre de to Reuss zu Köstritz, Prinz ((?))
- Reuss zu Köstritz, Prinz ((?)) to Reutter, Marie Valerie von
- Revedin, Alvise, Comte di San Martino to Reynolds, Jane Turpin
- Reynolds, Jarred to Rezet, Philippe Shattuck
- Rhau, Gertrud to Ribbing, Sevet
- Ribblesdale, 1st Baron, of Gisburne Park, co. York (Thomas) to Rich, Winifred
- Richard's Castle and Byton, Lord of (Osbern) to Richardson, John Mervyn Ashdall Carleton
- Richardson, John Samuel, Baron Richardson to Richmond-Watson, Zoë Isabel
- Richter, Clementine to Riddell, William
- Riddell-Blount, Ann Flora Mary to Ridley, William
- Ridley-Smith, Amy Emma to Riley, Sheila de Courcy
- Riley, Simon to Ritchie, James Edward Thomson, 2nd Bt.
- Ritchie, Jessie to Robartes, Richard, 1st Baron Robartes of Truro
- Robarts, Abraham to Roberts, Frederick Hugh Sherston, V.C.
- Roberts, Frederick Sleigh, 1st Earl Roberts, V.C. to Roberts, Wyn
- Robertson of Port Ellen, Baron, of Islay in Argyll and Bute (George Islay MacNeill) to Robertson, Mary
- Robertson, Mary to Robinson, Andrew Pirie
- Robinson, Ann to Robinson, John
- Robinson, John to Robinson, William, 1st Bt.
- Robinson, William, 2nd Bt. to Roche, Evelyn Laura
- Roche, Felix Temperley to Rochfort, William Robert Hood
- Rochfort-Boyd, Charles to Rodney, William Powell
- Rodriga, Marquesa de la (Angeles) to Rogers, John Jope
- Rogers, John Leman, 6th Bt. to Rokeby, Thomas
- Rokeby-Johnson, Caecilia Bridget to Rolls, Vickie Ann
- Roloff, Luise to Romanov, Nadeshda
- Romanov, Nadeshda Dimitriievna, Princess Romanov to Romilly, Henry
- Romilly, Herbrand Alan to Roper, Katherine
- Roper, Katherine Alice to Roscoe, Nicholas
- Roscommon, 12th Earl of (Michael James Robert) to Rosenborg, Ulrik Harald Gunar Oluf, Count af Rosenborg
- Rosenborg, Valdemar Alexander George Luigi Maria, Count af Rosenborg to Ross, Joan Florence
- Ross, Joanna Gwyn Alice to Rossmore of Monaghan, Baroness (Valerie Marion)
- Rossmore, Paddy to Rothschild, Charlotte Esther
- Rothschild, Charlotte Henrietta to Rottenhausen und Rasztina, Baroness von (Agathe Redi)
- Rotton, Elizabeth to Routh, Virginia Chloe
- Routledge, Ailsa Evelyn Margaret to Rowlatt, Sophie
- Rowles, John to Royden, unknown
- Roydon, Elizabeth to Rueff, Veronica Mary
- Ruffell, Anne Mary to Ruppin, Wilhelm-Karl von
- Rupprecht, Ellinka to Russel, Reynald
- Russell of Killowen, Baron, of Killowen in the County Down (Charles) to Russell, David Hastings Gerald
- Russell, David Patrick Hamilton to Russell, James
- Russell, James to Russell, Oliver Henry
- Russell, Pamela to Russia, Mariya Mikhailovna of
- Russia, Mariya Nikolaievna of to Ruthven of Ettrick, Baroness (Clara)
- Ruthven of Freeland, 10th Lord (Walter Patrick) to Ruxton, William
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