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Thomas Fitzmaurice (1668-1741) 1st Earl of Kerry (21st Baron of Kerry), Viscount Clanmorris was the father of John Fitzmaurice Petty (1706-1761) 1st Earl of Shelburne, who added Petty to his name after his mother, Anne Petty (d. 1737). Another son of the 1st Earl of Kerry was his heir William FitzMaurice (1694-1747) who succeeded as 2nd Earl of Kerry.
















Brabazon Ponsonby (1679-1758) 1st Earl of Bessborough, 2nd Viscount Duncannon, of the fort of Duncannon, Co. Wexford married Sarah Margetson. Their daughter Sarah (d. 1736/37) married Edward Moore, 5th Earl of Drogheda. Their daughter Anne married Benjamin Burton of Burton Hall, County Carlow. Their daughter Letitia (d. 1754) married Hervey Morres, 1st Viscount Mountmorres. Their son William Ponsonby (1704-1793) succeeded as 2nd Earl of Bessborough and a younger son, John (1713-1787) married Elizabeth, daughter of William Cavendish 3rd Duke of Devonshire.


















