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
1957 Commonwealth Prime Ministers' Conference Multilateral nuclear disarmament negotiations were also discussed. This was the first Commonwealth Prime Ministers' Conference attended by Ghana, which had attained independence in March 1957. 1957 Commonwealth Prime Ministers' Conference The 1957 Commonwealth Prime Ministers' Conference was the ninth Meeting of the Heads of Government of the Commonwealth of Nations. It was held in the United Kingdom in June 1957, and was hosted by that country's Prime Minister, Harold Macmillan. The new Canadian prime minister, John Diefenbaker, proposes the intensification of trade relations within the Commonwealth. His call for an Empire Trade Conference were resisted by the British government which