Family: Hervey Morres, 1st. Viscount Mountmorres / Lady Letitia Ponsonby (F3777)
m. 3 Nov 1742Brabazon Ponsonby, 1st. Earl of Bessborough (1679-1758) 
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Sarah Margetson ( -1773)
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William Ponsonby, 2nd. Earl of Bessborough (1704-1793)  |
| Rt. Hon. John Ponsonby (1713-1789) |
| Lady Sarah Ponsonby ( -1737) |
| Lady Letitia Ponsonby (1720-1754)
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