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
Deputy Prime Minister of Canada by Governor General Michaëlle Jean on February 6, 2006—the day Harper was appointed prime minister—when "the prime minister is unable to perform the functions of his office", Lawrence Cannon, then Jim Prentice, then the balance of the Cabinet by order of precedence, were "authorized to act for the prime minister". This order was followed by a number of others updating the list; in each case, the status as the top person on that list was accorded to the vice-chair of the cabinet's Priorities and Planning Committee. Previous prime ministers have had similar orders-in-council, under which the deputy prime minister and