Family: William Cavendish, 5th. Duke of Devonshire, KG / Lady Georgiana Spencer, Duchess of Devonshire (F3534)
m. 7 Jun 1774William Cavendish, 4th. Duke of Devonshire KG PC (1720-1764) 
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| John Spencer, 1st. Earl Spencer (1734-1783) |
Margaret Georgiana Poyntz (1737-1814)
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George John Spencer, 2nd. Earl Spencer (1758-1834)  |
| Lady Henrietta Frances Spencer (1761-1821) |
| William Cavendish, 5th. Duke of Devonshire, KG (1748-1811)
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| Lady Georgiana Spencer, Duchess of Devonshire (1757-1806)
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| Lady Georgiana Dorothy Cavendish (1783-1858) |
| Lady Harriet Elizabeth Cavendish (1785-1862) |