Who was Britain's oldest Prime Minister and lived in the Seaforth House built for his father?
Seaforth House Seaforth House was a mansion in Seaforth, Merseyside England built in 1813 for Sir John Gladstone, father of William Ewart Gladstone who was Prime Minister of the United Kingdom four times.
George Spencer-Churchill, 6th Duke of Marlborough George Spencer-Churchill, 6th Duke of Marlborough DCL (27 December 1793 – 1 July 1857), styled Earl of Sunderland until 1817 and Marquess of Blandford between 1817 and 1840, was a British nobleman, politician, and peer. The great-grandfather of Sir Winston Churchill, he served as Lord-Lieutenant of Oxfordshire between 1842 and 1857.