 In its turn, this title became extinct in 1963 when Henrietta's son from her first marriage to Francis Paynton Pigott, died.However, their daughter had already married William James Harris, 6th Earl of Malmesbury.In 2000, William James Harris died and James Carleton Harris became 7th Earl of Malmesbury thus a direct heir of Guy Carleton, 1st Baron Dorchester.