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 survey (and was judged to be the overall winner), although Alfred Deakin was nominated as the greatest prime minister by the most respondents. The four shortest-serving prime ministers were excluded from consideration, as well as the serving prime minister, Paul Keating. The total number of points was not published for prime ministers ranked outside the ten (except for those who received no points), only the order. In 2001, to commemorate the centenary of federation, "The Australian Financial Review" asked six historians to answer the question "who were the best five and who were the worst five prime ministers since 1901?".