| of Abercorn (Marquessate) |
John James Hamilton - Fri 15th Oct 1790
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- |
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| of Abergavenny (Earldom) |
George Nevill - Mon 17th May 1784
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- |
- |
| of Ailesbury (Earldom) |
Thomas Brudenell-Bruce - Mon 10th Jun 1776
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- |
- |
| Aldborough (Barony) |
Melusina von der Schulenburg - Tue 7th Apr 1722
|
16 September 1778 |
- |
| Alderney (Barony) |
William - Sat 27th Jul 1726
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- |
- |
| Althorp (Viscountcy) |
John Spencer - Fri 1st Nov 1765
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- |
- |
| Amherst (Barony) |
Jeffrey Amherst - Mon 20th May 1776
|
3 August 1797 |
- |
| Amherst (Barony) |
Jeffrey Amherst - Sat 6th Sep 1788
|
4 March 1993 |
- |
| of Ancaster and Kesteven (Dukedom) |
Robert Bertie - Fri 26th Jul 1715
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8 February 1809 |
- |
| Anson (Barony) |
George Anson - Tue 13th Jun 1747
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- |
- |
| Apsley (Barony) |
Henry Bathurst - Thu 24th Jan 1771
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- |
- |
| Archer (Barony) |
Thomas Archer - Fri 14th Jul 1747
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- |
- |
| of Ashburnham (Earldom) |
John Ashburnham - Sun 14th May 1730
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- |
- |
| Ashburton (Barony) |
John Dunning - Mon 8th Apr 1782
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- |
- |
| Auckland (Barony) |
William Eden - Wed 22nd May 1793
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- |
- |
| of Aylesford (Earldom) |
Heneage Finch - Fri 19th Oct 1714
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