Family and Education
b. c. 1704, 1st surv. s. of Brabazon, 1st Earl of Bessborough [I], and 1st Baron Ponsonby [GB], by his 1st w. Sarah, da. of James Margetson of Sysonby, Leics., wid. of Hugh Colvill of Newtown, co. Down. educ. Grand Tour. m. 5 July 1739, Lady Caroline Cavendish, da. of William, 3rd Duke of Devonshire, 5s. 4da. (his e. da. Catherine, 1763 Hon. Aubrey Beauclerk). suc. fa. 4 July 1758.
Offices Held
M.P. [I] 1725 – 58.
P.C. [I] 19 Nov. 1741; sec. to the ld. lt. [I] 1741 – 44; ld. of Admiralty June 1746 – Nov. 1756; ld. of Treasury Nov. 1756 – June 1759; jt. postmaster gen. June 1759 – Nov. 1762; P.C. [GB] 12 July 1765; jt. postmaster gen. July 1765 – Nov. 1766.
Parlimentarian
Volume
Commons 1754-1790
Web Title
PONSONBY, William, Visct. Duncannon (c.1704-93)
Will
Estates
Oxford 1644
No
Addresses
Religion
Image