Robert Gascoyne-Cecil, 3rd Marquess of Salisbury prime minister of his lifetime. Attlee immediately replied: "Salisbury". The 6th Marquess of Salisbury commissioned Andrew Roberts to write Salisbury's authorised biography, which was published in 1999. After the Bering Sea Arbitration, Canadian Prime Minister Sir John Sparrow David Thompson said of Lord Salisbury's acceptance of the Arbitration Treaty that it was "one of the worst acts of what I regard as a very stupid and worthless life". The British phrase 'Bob's your uncle' is thought to have derived from Robert Cecil's appointment of his nephew, Arthur Balfour, as Chief Secretary for Ireland. Fort Salisbury (now Harare) was named in
Marquess of Salisbury Marquess of Salisbury in the Peerage of Great Britain. He was succeeded by his eldest son, the second Marquess. He was a Conservative politician and held office as Lord Privy Seal and Lord President of the Council. Lord Salisbury married as his first wife Frances Mary Gascoyne, daughter of Bamber Gascoyne, in 1821. The same year he assumed by Royal licence the additional surname of Gascoyne. He was succeeded by his third but eldest surviving son, the third Marquess. The third Marquess was three times Prime Minister of the United Kingdom, from 1885 to 1886, 1886 to 1892 and 1895