| Ardwick (Barony) |
John Cowburn Beavan - Fri 16th Jan 1970
|
18 August 1994 |
- |
| of Argyll (Dukedom) |
George Douglas Campbell - Thu 7th Apr 1892
|
- |
- |
| Arklow (Barony) |
Augustus Frederick - Fri 27th Nov 1801
|
21 April 1843 |
- |
| Arklow (Barony) |
Leopold George Duncan Albert - Tue 24th May 1881
|
28 March 1919 |
- |
| Armaghdale (Barony) |
John Brownlee Lonsdale - Thu 17th Jan 1918
|
8 June 1924 |
- |
| Armitstead (Barony) |
George Armitstead - Thu 19th Jul 1906
|
7 December 1915 |
- |
| Armstrong (Barony) |
William George Armstrong - Wed 6th Jul 1887
|
27 December 1900 |
- |
| Armstrong (Barony) |
William Henry Armstrong Fitzpatrick Watson-Armstrong - Tue 4th Aug 1903
|
1 October 1987 |
- |
| Armstrong-Jones (Barony) |
Antony Charles Robert Armstrong-Jones - Tue 16th Nov 1999
|
13 January 2017 |
- |
| Armstrong of Hill Top (Barony) |
Hilary Jane Armstrong - Fri 18th Jun 2010
|
- |
- |
| Armstrong of Ilminster (Barony) |
Robert Temple Armstrong - Fri 26th Feb 1988
|
3 April 2020 |
- |
| Armstrong of Sanderstead (Barony) |
William Armstrong - Wed 29th Jan 1975
|
12 July 1980 |
- |
| Arnold (Barony) |
Sydney Arnold - Tue 12th Feb 1924
|
3 August 1945 |
- |
| Arwyn (Barony) |
Arwyn Randall Davies - Tue 29th Dec 1964
|
23 February 1978 |
- |
| Ashbourne (Barony) |
Edward Gibson - Sat 4th Jul 1885
|
- |
- |
| Ashburton (Barony) |
Alexander Baring - Fri 10th Apr 1835
|
- |
- |
| Ashby (Barony) |
Eric Ashby - Fri 6th Jul 1973
|
22 October 1992 |
- |
| Ashby St Ledgers (Barony) |
Ivor Churchill Guest - Tue 15th Mar 1910
|
- |
- |
| Ashcombe (Barony) |
George Cubitt - Mon 22nd Aug 1892
|
- |
- |
| Ashcroft (Barony) |
Michael Anthony Ashcroft - Fri 20th Oct 2000
|
- |
- |