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 Australia and provinces of Canada each have the analogous office of deputy premier. In the devolved administrations of the United Kingdom, an analogous position is that of the deputy first minister but the position in Northern Ireland has the same powers as the First Minister. A deputy prime minister traditionally serves as acting prime minister when the real prime minister is temporarily absent or incapable of exercising his/her power. The deputy prime minister is often asked to succeed to the prime minister's office following the prime minister's sudden death or unexpected resignation, but that is not necessarily mandated by the