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
Prime minister in whom they placed special trust and who were regarded as the head of the government. Examples were Thomas Cromwell under Henry VIII; William Cecil, Lord Burghley under Elizabeth I; Clarendon under Charles II and Godolphin under Queen Anne. These ministers held a variety of formal posts, but were commonly known as "the minister", the "chief minister", the "first minister" and finally the "prime minister". The power of these ministers depended entirely on the personal favour of the monarch. Although managing the parliament was among the necessary skills of holding high office, they did not depend on a parliamentary majority