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 of the United Kingdom of Prime Minister, and to the historic link between the Premiership and the office of First Lord of the Treasury, by providing in respect to that position and office a salary of ..." The Act made a distinction between the "position" (Prime Minister) and the "office" (First Lord of the Treasury), emphasising the unique political character of the former. Nevertheless, the brass plate on the door of the Prime Minister's home, 10 Downing Street, still bears the title of "First Lord of the Treasury", as it has since the 18th century as it is officially the home of the First