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.
Keith Holyoake Sir Keith Jacka Holyoake {'1': ", '2': ", '3': ", '4': "} ( ;11 February 1904 – 8 December 1983) was the 26th Prime Minister of New Zealand, serving for a brief period in 1957 and then from 1960 to 1972, and also the 13th Governor-General of New Zealand, serving from 1977 to 1980. He is the only person to have held both positions.