William married Anne Hannah Spencer in 1720 in London, London, England. Anne (daughter of Charles (2nd Duke of Marlborough, 3rd Earl of Sunderland) Spencer and Anne Churchill) was born on 16 Dec 1700 in Althrope Manor, Brington, Northamptonshire, England; died on 19 Feb 1769 in Saint Bride, Fleet Street, London, Middlesex, England. [Group Sheet] [Family Chart]