Family: Frederick Ponsonby, 3rd. Earl of Bessborough / Lady Henrietta Frances Spencer (F2672)
m. 27 Nov 1780William Ponsonby, 2nd. Earl of Bessborough (1704-1793) 
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Caroline Cavendish (1719-1760)
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Lady Catherine Ponsonby (1742-1789)  |
| Lady Charlotte Ponsonby (1750-1822) |
| John Spencer, 1st. Earl Spencer (1734-1783) |
| Margaret Georgiana Poyntz (1737-1814)
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| Lady Georgiana Spencer, Duchess of Devonshire (1757-1806) |
| George John Spencer, 2nd. Earl Spencer (1758-1834) |
| Lady Henrietta Frances Spencer (1761-1821)
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| Frederick Ponsonby, 3rd. Earl of Bessborough (1758-1844)
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| John William Ponsonby, 4th. Earl of Bessborough (1781-1847) |
| Major-General Sir Frederick Cavendish Ponsonby (1783-1837) |
| Lady Caroline Ponsonby (1785-1828) |