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.
F. J. Robinson, 1st Viscount Goderich Frederick John Robinson, 1st Earl of Ripon, (1 November 1782 – 28 January 1859), styled The Honourable F. J. Robinson until 1827 and known as The Viscount Goderich between 1827 and 1833, the name by which he is best known to history, was a British statesman. He was Prime Minister of the United Kingdom between August 1827 and January 1828.