When did the man who Lord Frederick Charles Cavendish was a protege of last serve as Prime Minister?
William Ewart Gladstone William Ewart Gladstone, ( ; 29 December 1809 – 19 May 1898) was a British Liberal statesman and earlier Conservative politician. In a career lasting over 60 years, he served as Prime Minister four separate times (1868–74, 1880–85, February–July 1886 and 1892–94), more than any other person, and served as Chancellor of the Exchequer four times. Gladstone was also Britain's oldest Prime Minister; he resigned for the final time when he was 84 years old.
John Stuart, 3rd Earl of Bute John Stuart, 3rd Earl of Bute, ( ; 25 May 1713 – 10 March 1792) was a Scottish nobleman who served as Prime Minister of Great Britain (1762–1763) under George III. He was arguably the last important favourite in British politics. He was the first Prime Minister from Scotland following the Acts of Union in 1707 and the first Tory to have held the office.