Alan Ian (8th Duke of Northumberland) Percy
1880 - 1930 (50 years)
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| Henry George Alan (9th Duke of Northumberland) Percy | |
| B: | 15 Jul 1912 |
| D: | 21 May 1940 |
| Action At Tournai | |
| Henry Alan Walter Richard (11th Duke of Northumberland) Percy | |
| B: | 1 Jul 1953 |
| D: | 31 Oct 1995 |
 | Louise Percy 1962-1962 |
| Louise Percy | |
| B: | 25 May 1962 |
| D: | 27 May 1962 |
| Hugh Algernon (10th Duke of Northumberland) Percy | |
| B: | 6 Apr 1914 |
| D: | Oct 1988 |
| Elizabeth Diana Montagu-Douglas-Scott 1922-2012 |
| Elizabeth Diana Montagu-Douglas-Scott | |
| B: | 20 Jan 1922 |
| M: | Jun 1946 |
| D: | 19th September 2012 |
| Angus Alan (15th Duke of Hamilton, 12th Duke of Brandon) Douglas-Hamilton | |
| B: | 1938 |
| D: | 5 Jun 2010 |
| Sarah Jane Scott 1945-1994 |
| Sarah Jane Scott | |
| B: | 28 Oct 1945 |
| M: | 1972 |
| D: | 17 Feb 1994 |
| Jillian Robertson 1940-2018 |
| Jillian Robertson | |
| B: | 30 Jan 1940 |
| Sydney, Australia | |
| M: | 1988 |
| D: | 22 Apr 2018 |
| Oxford, England | |
| Lord James Alexander (Baron Selkirk of Douglas) Douglas-Hamilton | |
| B: | 31 Jul 1942 |
| D: | 28 Nov 2023 |
| Lord Hugh Malcolm Douglas-Hamilton 1946-1995 |
| Lord Hugh Malcolm Douglas-Hamilton | |
| B: | 22 Aug 1946 |
| D: | 21 Jun 1995 |
| Lord David Stephen Hamilton 1952-2020 |
| Lord David Stephen Hamilton | |
| B: | 26 Dec 1952 |
| D: | 6 Apr 2020 |
| Edinburgh, Scotland | |
| Lady Elizabeth (of Northumberland) Percy 1916-2008 |
| Lady Elizabeth (of Northumberland) Percy | |
| B: | 25 May 1916 |
| D: | Sep 2008 |
| Douglas (14th Duke of Hamilton) Douglas-Hamilton, K.T., G.C.V.O., A.F.C., P.C. | |
| B: | 3 Feb 1903 |
| M: | 2 Dec 1937 |
| D: | 30 Mar 1973 |
| Lord Richard Charles Percy 1921-1989 |
| Lord Richard Charles Percy | |
| B: | 11 Feb 1921 |
| D: | 1989 |
| Hon Clayre Campbell 2015-1927 |
| Hon Clayre Campbell | |
| B: | 10 Jan 2015 |
| D: | 28 May 1927 |
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| Alan Ian (8th Duke of Northumberland) Percy | |
| B: | 17 Apr 1880 |
| D: | 23 Aug 1930 |
| Helen Magdalene Gordon-Lennox | |
| D: | 13 Jun 1965 |