| of Albemarle (Earldom) |
Arnold Joost van Keppel - Sun 10th Feb 1697
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| Alcester (Barony) |
Frederick Beauchamp Paget Seymour - Fri 24th Nov 1882
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30 March 1895 |
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| Aldenham (Barony) |
Henry Hucks Gibbs - Fri 31st Jan 1896
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| Alderney (Viscountcy) |
Louis Alexander Mountbatten - Tue 17th Jul 1917
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| Aldington (Barony) |
Austin Richard William Low - Mon 29th Jan 1962
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| Alexander of Hillsborough (Viscountcy) |
Albert Victor Alexander - Fri 27th Jan 1950
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11 January 1965 |
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| Alexander of Tunis (Viscountcy) |
Harold Rupert Leofric George Alexander - Fri 1st Mar 1946
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| Alington (Barony) |
Henry Gerard Sturt - Sat 15th Jan 1876
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17 September 1940 |
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| Allenby of Megiddo (Viscountcy) |
Edmund Henry Hynman Allenby - Tue 7th Oct 1919
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| Allendale (Barony) |
Wentworth Blackett Beaumont - Fri 20th Jul 1906
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| Allen of Hurtwood (Barony) |
Reginald Clifford Allen - Mon 18th Jan 1932
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3 March 1939 |
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| Allerton (Barony) |
William Lawies Jackson - Thu 17th Jul 1902
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1 July 1991 |
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| Alness (Barony) |
Robert Munro - Wed 27th Jun 1934
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6 October 1955 |
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| Althorp (Viscountcy) |
Charles Robert Spencer - Tue 19th Dec 1905
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| Altrincham (Barony) |
Edward William Macleay Grigg - Wed 1st Aug 1945
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| Alvanley (Barony) |
Richard Pepper Arden - Fri 22nd May 1801
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24 June 1857 |
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| Alverstone (Barony) |
Richard Everard Webster - Mon 18th Jun 1900
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15 December 1915 |
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| Alvingham (Barony) |
Robert Daniel Thwaites Yerburgh - Wed 10th Jul 1929
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| Amberley (Viscountcy) |
John Russell - Tue 30th Jul 1861
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| Amesbury (Barony) |
Charles Dundas - Wed 16th May 1832
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30 June 1832 |
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