George Charles (8Th Duke) Spencer-Churchill
1844 - 1892 (47 years)
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| John George Vanderbilt Henry (11Th Duke of Marlborough) Spencer-Churchill | |
| B: | 13 Apr 1926 |
| D: | 16 Oct 2014 |
 | Susan Mary Hornby Bef 1951-2005 |
| Susan Mary Hornby | |
| B: | Bef 1951 |
| M: | 1951 |
| D: | 2005 |
| Mrs Lily Mahtani | |
| M: | 2008 |
| John Albert Edward William (10Th Duke of Marlborough) Spencer-Churchill | |
| B: | 1897 |
| D: | 1972 |
| Alexandra Mary Hilda Cadogan 1900-1961 |
| Alexandra Mary Hilda Cadogan | |
| B: | 1900 |
| D: | 1961 |
| Charles Richard John (9Th Duke of Marlborough) Spencer-Churchill, Pc | |
| B: | 1871 |
| D: | 1934 |
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| George Charles (8Th Duke) Spencer-Churchill | |
| B: | 13 May 1844 |
| D: | 1892 |