Family: William Brabazon Ponsonby, 1st. Baron Ponsonby of Imokilly / Hon. Louisa Molesworth (F2395)
m. 26 Dec 1769Rt. Hon. John Ponsonby (1713-1789) 
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Lady Elizabeth Cavendish (1723-1796)
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Rt. Hon. George Ponsonby (1755-1817)  |
| Field Marshall Mary Jenney Ussher ( -1763) |
| Hon. Louisa Molesworth (1749-1824)
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| John Brabazon Ponsonby, Viscount Ponsonby (1770-1855) |
| Major-General Sir William Ponsonby, KCB (1772-1815) |
| Richard Ponsonby (1772-1853) |
| Hon. George Ponsonby, M.P. (1774-1863) |
| Frederick Ponsonby ( -1849) |
| Mary Elizabeth Ponsonby (1775-1861) |