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 Eleven Prime Ministers have served their entire terms as Members of the House of Commons but were elevated to the House of Lords afterwards by being created peers: In contrast 17 Prime Ministers preceding the current (Theresa May) have never become members of the House of Lords. Henry Pelham (served 1743 to his death in 1754) was the first to be a lifelong 'Commoner' but the convention of Prime Ministers leading from the House of Commons only became established in the 20th century. Holders of Irish peerages (with the exception of 28 Irish representative peers allowed after 1801, who were