Zij is getrouwd met Henry VANE.
Zij zijn getrouwd op 18 november 1809 te St George, Hanover Square, Belgravia, Westminster, Middlesex, zij was toen 24 jaar oud.
Daughter of John Poulett, 4th Earl Poulett KT (3 April 1756 - 14 January 1819), styled Viscount Hinton between 1764 and 1788, was a British peer and militia officer. Lord Poulett married firstly Sophia Pocock, daughter of Admiral Sir George Pocock, in 1782.
They had ten children, including Vice-Admiral the Honourable George Poulett, father of William Poulett, 6th Earl Poulett. One daughter, Lady Sophia Poulett was the wife of Henry Vane, 2nd Duke of Cleveland, while another daughter, Lady Mary Poulett, was the second wife of Lord Charles Somerset.
After Sophia's death in January 1811 Poulett married secondly Margaret Burges, daughter of Ynyr Burges and widow of Sir John Smith-Burges, 1st Baronet, in 1816
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