Family: William (1st Baron Decies) Beresford / Elizabeth (of Mount Shannon) Fitzgibbon (F61829)
m. 12 Jun 1763
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 | Marcus (Sir) (1st Earl of Tyronne) Beresford (1694-1763)
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 | Katherine (Baroness La Poer) Poer ( -1769)
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| John (Rt Hon) De La Poer Beresford (1738- )  |
| Anne (of Tyronne) Beresford ( -1770) |
| John (1st Earl of Clare) Fitzgibbon (1748-1802) |
| William (1st Baron Decies) Beresford (1743- )
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| John (2nd Baron Decies) Horsley-Beresford (1774-1855) |