Family: Aubrey Beauclerk, 5th. Duke of St. Albans / Lady Catherine Ponsonby (F3809)
m. 4 May 1763William Ponsonby, 2nd. Earl of Bessborough (1704-1793) 
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Caroline Cavendish (1719-1760)
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Lady Charlotte Ponsonby (1750-1822)  |
| Frederick Ponsonby, 3rd. Earl of Bessborough (1758-1844) |
| Aubrey Beauclerk, 5th. Duke of St. Albans (1740-1802) |
| Lady Catherine Ponsonby (1742-1789)
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