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
Records of Prime Ministers of the United Kingdom five successive Prime Ministers were in office. In modern times, since members of the House of Lords ceased to hold Prime Ministerial office (after 1902), there were three Prime Ministers in office between the general elections of 1935 and 1945: Stanley Baldwin (retired 28 May 1937), Neville Chamberlain (resigned 10 May, and subsequently died 1940) and Winston Churchill (until dissolution of the parliament). The most number of general elections contested by an individual is six. H. H. Asquith contested the January 1910, December 1910, 1918, 1922, 1923 and the 1924 general elections. The most number of general elections lost by