Who married Anne Duncombe?

Jacob Pleydell-Bouverie, 2nd Earl of Radnor FRS FSA (4 March 1750 – 27 January 1828), styled Hon. Jacob Pleydell-Bouverie from 1761 to 1765 and Viscount Folkestone from 1765 to 1776, was a British politician who sat in the House of Commons from 1771 to 1776 when he succeeded to the peerage as Earl of Radnor.