Andrew Robert Buxton Cavendish, 11th Duke of Devonshire, was born 2 January 1920 in London, Greater London, England, United Kingdom to Edward William Spencer Cavendish, 10th Duke of Devonshire (1895-1950) and Mary Alice Gascoyne-Cecil (1895-1988) and died 3 May 2004 Chatsworth House, Derbyshire, England, United Kingdom of unspecified causes. He married Deborah Vivien Freeman-Mitford (1920-2014) 19 April 1941 .
Children
| Name | Birth | Death | Joined with |
| Mark Cavendish (1941-1941) | |||
| Emma Cavendish (1943) | |||
| Peregrine Andrew Morny Cavendish, 12th Duke of Devonshire (1944) | 27 April 1944 | Amanda Carmen Heywood-Lonsdale (1944) | |
| Victor Cavendish (1947-1947) | |||
| Mary Cavendish (1953-1953) | |||
| Sophia Louise Sydney Cavendish (1957) | |||
Footnotes (including sources)
| ‡ General |
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