Records of Prime Ministers of the United Kingdom combined with his first term (13 July 176530 July 1766) his total time in office was 1 year and 113 days, which exceeds the total periods of several other Prime Ministers. (The Duke of Wellington had also served as Prime Minister between 1828 and 1830.) Consequently, the Prime Minister with the total shortest period in office was George Canning, whose sole term lasted 119 days from 12 April 1827 until his death on 8 August 1827. The Prime Minister with the longest period between the start of their first appointment and the end of their final term was the Duke
Records of Prime Ministers of the United Kingdom the reign of the present sovereign Queen Elizabeth II. King George III (reigned 1760–1820) Queen Victoria (reigned 1837–1901) Queen Elizabeth II (acceded 1952) <nowiki>*</nowiki> Perceval was assassinated in 1812. His is the only complete lifetime lived by a Prime Minister under a single sovereign. Both Robert Walpole (1676–1745) and Lord Wilmington ( 1673–1743) lived under the reigns of the same six sovereigns: Charles II, James II, William III and his joint sovereign Mary II, Queen Anne, George I and George II. Sir Winston Churchill (1874–1965), Clement Attlee (1883–1967), Anthony Eden (1897–1977) and Harold Macmillan (1894–1986) all lived under the six