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.
William Petty (1737-1805) 1st Marquess of Lansdowne Lord Shelburne, Prime Minister, after Sir Joshua Reynolds based on a work of 1766, National Portrait Gallery of London 43.He was the son of John Fitzmaurice Petty (1706-1761) 1st Earl of Shelburne, who was the son of Thomas Fitzmaurice 1st Earl of Kerry (21st Baron of Kerry), Viscount ClanmorrisLouisa Lansdowne née Fitzpatrick, wife of William Petty 1st Marquess of Lansdowne by Joshua Reynolds from Catalogue of the pictures and drawings in the National loan exhibition, in aid of National gallery funds, Grafton Galleries, London. She was a daughter of John FitzPatrick 1st Earl of Upper Ossory.John Henry Petty (1765-1809) 2nd Marquess of Lansdowne National Portrait Gallery of London ref. D37171.John Henry Petty (1765-1809), 2nd Marquis of Lansdowne by Francois-Xavier Fabre, 1795.Henry Petty-Fitzmaurice (1780-1863) 3rd Marquess of Lansdowne, Trustee of the National Portrait Gallery, by Henry Walton circa 1805 courtesy of National Portrait Gallery, NPG 178.Henry Thomas Petty-Fitzmaurice (1816-1866) 4th Marquess of Lansdowne, Politician and railway company chairman, photograph by by John & Charles Watkins circa early 1860s, courtesy of National Portrait Gallery NPG Ax16422.Henry Charles Keith Petty-Fitzmaurice 5th Marquess of Lansdowne by Philip Alexius de László.Beatrix Frances Duchess of St Albans, Maud Evelyn Petty-Fitzmaurice, Marchioness of Lansdowne (wife of 5th Marquess), Theresa Susey Helen Vane-Tempest-Stewart, Marchioness of Londonderry and Evelyn Emily Mary Cavendish, Duchess of Devonshire, by Frederick & Richard Speaight.Mrs Letitia Pilkington (née Van Lewen), (1712-1750), “Adventuress” and Author Date: c.1760 Engraver: Richard Purcell, Irish, c.1736-c.1766 After Nathaniel Hone the Elder, Irish, 1718-1784.Oliver Plunket, by Edward Luttrell courtesy of National Portrait Gallery London.Called Frances Hales, Countess of Fingall, possibly Margaret MacCarty later Countess of Fingall, wife of Luke Plunkett (1639-1685) 3rd Earl of Fingall, by Simon Pietersz Verelst courtesy of National Trust Hatchlands. Margaret was daughter of Donough MacCarty (or MacCarthy) 1st Earl of Clancarty; 2nd Viscount Muskerry. Frances Hales married Peter Plunkett (1678-1717) 4th Earl of Fingall.Arthur James Plunkett (1759-1836) 8th Earl of Fingall by Charles Turner after Joseph Del Vechio NPG D36923.Horace Plunkett by photographer Bassano Ltd, 1923, courtesy of National Portrait Gallery of London, reference NPGx12783.William Conyngham Plunket, 1st Baron Plunket, (1764-1854), Orator and former Lord Chancellor of Ireland Engraver David Lucas, British, 1802-1881 After Richard Rothwell, Irish, 1800-1868.Marble bust of William Plunket, 1st Baron Plunket (1764-1854), Lord Chancellor of Ireland, by CHRISTOPHER MOORE RHA (1790 – 1863), courtesy of Adams auction 19 Oct 2021.William Pole of Ballyfin (d. 1781), English school of 18th century, pastel, courtesy of Christies auction, wikimedia commons. He married Sarah Moore, daughter of the 5th Earl of Drogheda.
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.
Windham Quin (1717-1789) of Adare, County Limerick by Stephen Slaughter, courtesy of Yale Center for British Art.Elizabeth Christina Foster née Hervey (1759-1824) later Duchess of Devonshire by Angelica Kauffmann courtesy of National Trust Ickworth. She was the daughter of Frederick Augustus Hervey 4th Earl of Bristol, Bishop of Derry who built Downhill, Co Derry. She married John Thomas Foster MP (1747-1796) and later, William Boyle Cavendish 5th Duke of Devonshire. Last, she married Valentine Richard Quin 1st Earl of Dunraven and Mount Earl.
James Rochfort (“Prime Iron”) and Thomasine Pigott had several children including Charles who married Marbella, daughter of Theophilus Jones and Alice Ussher, and Robert (1652-1727), who became Speaker of the Irish House of Commons and Chief Baron of the Irish Exchequer. He married Hannah Hancock (d. 1733) of Twyford, County Westmeath.
Robert Rochfort (1652-1727) as Speaker of the Irish House of Commons by an unknown artist, Photograph of a painting owned by Michael O’Reilly.
Robert Rochfort (1652-1727) and Hannah née Hancock had sons George Rochfort (1682-1730), later of Gaulstown, Co. Westmeath and John (1690-1771). George married Elizabeth, daughter of Henry Hamilton-Moore, 3rd Earl of Drogheda. John married, first, Deborah Staunton (d. 1737) then Emilia (d. 1770), daughter of John Eyre (1659-1709) of Eyre Court.
George Rochfort (1682-1730), of Gaulstown, Co. Westmeath, M.P. for Co. Westmeath by Charles Jervas courtesy of Christies Auction 2002
George and Elizabeth née Moore had lots of children. The heir was Robert (1708-1774) who was later created 1st Earl of Belvedere.
Robert Rochfort, 1st Earl of Belvedere (1708-1774), three-quarter-length, in van Dyck costume, by Robert Hunter It is possible that the present portrait was executed posthumously.
Other children included Mary (1705-1729) who married Henry Tuite, 6th Baronet. Alice (1710-1738) married Thomas Loftus (1701-1768). Thomasine, born 1716, married Gustavus Lambart of Beauparc, County Meath (a section 482 property, see my entry). Anne married Henry Lyons, High Sheriff for King’s County. William (1719-1772) married Henrietta Ramsay. Arthur married Sarah Singleton and became MP for County Westmeath. George (1713-1794) married Alice, daughter of Gustavus Hume, 3rd Baronet.
Jane Butler née Rochfort Countess of Lanesborough (1737-1828) Attributed to Thomas Pope Stevens courtesy Christies Irish Sale 2002. She was the daughter of Robert Rochfort, 1st Earl of Belvedere and married Brinsley Butler, 2nd Earl of Lanesborough.Sarah Rochfort (nee Singleton) was the daughter of The Rev. Rowland Singleton (1696-1741) of Drogheda, later Vicar of Termonfeckin, County Louth, wife of Arthur Rochfort (1711-1774) of Bellfield House Co Westmeath, sold at Shepphards.
The first Earl of Belvedere is infamous for locking up his wife, Mary Molesworth, daughter of the 3rd Viscount of Swords (see my entry about Belvedere, County Westmeath). Their daughter Jane (d. 1828) married Brinsley Butler, 2nd Earl of Lanesborough. Robert 1st Earl’s son George (1738-1813) succeeded as 2nd Earl of Belvedere.