When did the man who Lord Frederick Charles Cavendish was a protege of last serve as Prime Minister?
Lord Frederick Cavendish Lord Frederick Charles Cavendish {'1': ", '2': ", '3': ", '4': "} (30 November 1836 – 6 May 1882) was an English Liberal politician and "protégé" of the Prime Minister, William Ewart Gladstone. Cavendish was appointed Chief Secretary for Ireland in May 1882 but was murdered only hours after his arrival in Dublin, a victim of the politically motivated Phoenix Park murders.
Henry Manners, 8th Duke of Rutland Henry John Brinsley Manners, 8th Duke of Rutland, KG, TD (16 April 1852 – 8 May 1925), known as Henry Manners until 1888 and styled Marquess of Granby until 1906, was a British peer and Conservative politician.