Records of Prime Ministers of the United Kingdom of . From oldest to youngest: The most recent death of a former Prime Minister was that of Baroness Thatcher (served 1979–90) on 8 April 2013 (aged 87 years, 177 days). Seven Prime Ministers have died in office: Spencer Perceval is the only British Prime Minister to have been assassinated. Sir Robert Peel, Margaret Thatcher and John Major survived assassination attempts in 1843, 1984 and 1991 respectively. Sir Henry Campbell-Bannerman and Bonar Law each resigned during their respective final illnesses. Law died five months after his resignation, but Campbell-Bannerman lived only another 19 days, dying at 10 Downing Street, the
Historical rankings of Prime Ministers of Australia Five points were awarded to each historian's choice as the best and worst prime minister, and so on down to one point for the fifth-best and fifth-worst prime ministers. Alfred Deakin was a unanimous choice as Australia's best prime minister, winning full votes from each selector; Robert Menzies also appeared on every "best" list. No one prime minister appeared on all six "worst" lists, although William McMahon appeared on five and James Scullin on four. Several prime ministers appeared on both "best" and "worst" lists, sometimes from the same selector. Stuart Macintyre considered Menzies to be Australia's second-best prime minister