Records of Prime Ministers of the United Kingdom - wikipedia Records of Prime Ministers of the United Kingdom hide This article has multiple issues. Please help improve it or discuss these issues on the talk page. ( Learn how and when to remove these template messages ) This article may be in need of reorganization to comply with Wikipedia 's layout guidelines. Please help by editing the article to make improvements to the overall structure. ( February 2017 ) This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. ( July 2016 ) The article lists the records of Prime Ministers of Great Britain and of the United Kingdom since 1721. Contents 1 Period of service 1.1 Number of terms 2 Terms of Prime Ministers and reigns of sovereigns 2.1 Served under most sovereigns 2.2 Number of Prime Ministers serving during reign 2.3 Prime Ministers born during reigns in which they held office 2.4 Prime Ministers who lived under most reigns 3 Age 3.1 Age at appointment 3.2 Age on leaving office 3.3 Age differences of outgoing and incoming Prime Ministers 3.4 Longest lived 3.5 Shortest lived 3.6 Longest lived after office 3.7 Shortest lived after office 4 Intervals between terms of office 5 Female Prime Ministers 6 Birthplace 7 Facial hair 8 Ethnic minority Prime Ministers 9 Religious minority Prime Ministers 10 Disabled Prime Ministers 11 General elections 11.1 Most Prime Ministers in office between general elections 11.2 Most general elections contested 11.3 Age at losing a general election 11.4 Age at winning a general election 11.5 Prime Ministers in office without a general election 12 Prime Ministers who served from ( or later entered ) the House of Lords 13 Service in House of Commons 13.1 Prime Ministers who were Father of the House 14 Education 15 Armed forces veterans 15.1 Active service veterans 15.2 War bereaved Prime Ministers 16 Decorated 17 Number of living former Prime Ministers 17.1 None 17.2 One 17.3 Most 18 Living former Prime Ministers 19 Died in office 19.1 Died while immediate successor was in office 20 Married 21 Widowed 21.1 Widowed the longest 21.2 Widowed the shortest 21.2. 1 Other widowed Prime Ministers 22 Divorced 23 Kindred Prime Ministers 23.1 Fathers and Sons 23.2 Brothers 23.3 Full cousins 23.4 Uncles and Nephews 23.5 Great - great - uncle and Great - great - nephew 23.6 Father - in - law and Son - in - law 23.7 Brothers - in - law 23.8 Uncle - in - law and Nephew - in - law 23.9 Great - uncle - in - law and Great - nephew - in - law 23.10 Other connections 24 Miscellaneous 25 See also 26 References Period of service Main article : List of Prime Ministers of the United Kingdom by tenure Sir Robert Walpole, the longest - serving Prime Minister ( 1721 -- 42 ) George Canning, the shortest - serving Prime Minister ( April -- August 1827 ) The Prime Minister with the longest single term was Sir Robert Walpole, lasting 20 years and 314 days from 4 April 1721 until 11 February 1742. This is also longer than the accumulated terms of any other Prime Minister. The shortest period in office is more confused, depending on the criteria. The shortest ever period was only three days, a record held by Lord Bath, from 10 February to 12 February 1746, who was asked to form a government but was unable to find more than one person who would agree to serve in his cabinet. A satirist of the time wrote : `` the minister to the astonishment of all wise men never transacted one rash thing ; and, what is more marvellous, left as much money in the Treasury as he found in it. '' James Waldegrave, 2nd Earl Waldegrave was a prime minister for four days, from 8 June to 12 June 1757. However, since neither of these Earls actually formed an effective government, there are other contenders for the record of shortest term of office among those who actually governed the country. In November 1834, the Duke of Wellington declined to become Prime Minister in favour of Sir Robert Peel but formed a `` caretaker '' administration for 25 days ( 17 November 1834 -- 9 December 1834 ) while Peel returned from Europe. However, as a caretaker administration this might not necessarily be considered a term of office in its own right. Therefore, of those with clear and effective terms, the Prime Minister with the shortest single one was Lord Rockingham, whose second term lasted 96 days from 27 March 1782 until his death on 1 July 1782. However, combined with his first term ( 13 July 1765 -- 30 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 10 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 of Portland, whose first term began on 2 April 1783 and whose second and final term ended on 4 October 1809. Number of terms A Prime Minister 's `` term '' is traditionally regarded as the period between their appointment and resignation, dismissal ( or death, in the case of those who die in office ), with the number of general elections taking place in the intervening period making no difference. The only Prime Minister to serve four terms under that definition was William Ewart Gladstone ( 3 December 1868 -- 20 February 1874, 23 April 1880 -- 23 June 1885, 1 February 1886 -- 25 July 1886 and 15 August 1892 -- 5 March 1894 ). Terms of Prime Ministers and reigns of sovereigns The office of Prime Minister has coincided with the reigns of 11 British monarchs ( including a Regency during the incapacity of George III from 1811 to his death in 1820 ), to whom the Prime Minister has been constitutionally head of government to the sovereign 's headship of state. Until 1837 the death of a sovereign led to Parliament being dissolved within six months which led to a general election. Results of such elections were : 1727 -- Sir Robert Walpole held 1761 -- the Duke of Newcastle held 1820 -- Lord Liverpool held 1830 -- the Duke of Wellington defeated, Lord Grey appointed 1837 -- Lord Melbourne held Served under most sovereigns Stanley Baldwin is the only Prime Minister to have served three sovereigns in succession -- King George V, King Edward VIII and King George VI. Through being in office at transitions between reigns, eight Prime Ministers each served under two sovereigns : Sir Robert Walpole -- George I and George II The Duke of Newcastle -- George II and George III Lord Liverpool -- George III and George IV The Duke of Wellington -- George IV and William IV Lord Melbourne -- William IV and Queen Victoria Lord Salisbury -- Queen Victoria and Edward VII H.H. Asquith -- Edward VII and George V Sir Winston Churchill -- George VI and Elizabeth II Number of Prime Ministers serving during reign George III had 14 Prime Ministers serving during his 59 - year reign ( reigned 1760 -- 1820 ), beginning with the Duke of Newcastle. The last incumbent, Lord Liverpool, was the only one appointed by his son ( the Prince Regent ) during the father 's final incapacity to rule. In downward numerical order, numbers of Prime Ministers in office during other reigns are : Elizabeth II -- 13, from Sir Winston Churchill to incumbent Theresa May ( as of July 2018 ) Victoria -- 10, from Lord Melbourne to Lord Salisbury George II -- five, from Sir Robert Walpole to the Duke of Newcastle George V -- five, from H.H. Asquith to Stanley Baldwin George IV -- four, from Lord Liverpool to the Duke of Wellington William IV -- four, from the Duke of Wellington to Lord Melbourne Edward VII -- four, from Lord Salisbury to H.H. Asquith George VI -- four, from Stanley Baldwin to Winston Churchill George I -- one ( Robert Walpole ) Edward VIII -- one ( Stanley Baldwin ) Prime Ministers born during reigns in which they held office Only six Prime Ministers came to serve office under sovereigns in whose own reigns they were born. The present Prime Minister, Theresa May, is the third Prime Minister to have been born in the reign of the present sovereign Queen Elizabeth II. King George III ( reigned 1760 -- 1820 ) Spencer Perceval ( born 1762, served 1809 -- 12 ) Lord Liverpool ( born 1770, appointed 1812 ) Queen Victoria ( reigned 1837 -- 1901 ) Lord Rosebery ( born 1847, served 1894 -- 95 ) Queen Elizabeth II ( acceded 1952 ) Tony Blair ( born 1953, served 1997 -- 2007 ) David Cameron ( born 1966, served 2010 -- 16 ) Theresa May ( born 1956, appointed 2016 ) * ^ Perceval was assassinated in 1812. His is the only complete lifetime lived by a Prime Minister under a single sovereign. Prime Ministers who lived under most reigns Both Robert Walpole ( 1676 -- 1745 ) and Lord Wilmington ( c. 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 reigns of Victoria, Edward VII, George V, Edward VIII, George VI and Elizabeth II. Age Main article : List of Prime Ministers of the United Kingdom by age Age at appointment William Ewart Gladstone was appointed more times than any other Prime Minister. He was also the oldest person ever appointed ( at age 82 ). William Pitt the Younger was the youngest Prime Minister ever appointed ( at age 24 ). The youngest Prime Minister to be appointed was William Pitt the Younger on 19 December 1783 at the age of 24 years, 6 months and 21 days. The oldest Prime Minister to be appointed for the first time was Lord Palmerston on 6 February 1855 at the age of 70 years, 3 months and 17 days. The oldest Prime Minister to be appointed overall, and oldest to win a General Election, was William Ewart Gladstone, who was born on 29 December 1809 and appointed for the final time on 15 August 1892 at the age of 82 years, 7 months and 3 days, following that year 's General Election. Age on leaving office The youngest Prime Minister to leave office was the Duke of Grafton, who retired in 1770, aged 34. The oldest was Gladstone, who was 84 at the time of his final retirement in 1894. Age differences of outgoing and incoming Prime Ministers Greatest age difference -- Lord Rosebery ( born 7 May 1847 ) was 37 years 129 days younger than William Ewart Gladstone ( born 29 December 1809 ) whom he succeeded after the final retirement of the latter in 1894. Smallest age difference -- George Canning ( born 11 April 1770 ) was 67 days senior to Lord Liverpool ( born 7 June 1770 ), whom he succeeded after Liverpool retired in 1827. Canning and Liverpool were one of four pairs of immediately consecutive Prime Ministers who shared a same birth year, the others being : William Pitt the Younger ( served 1783 -- 1801 and 1804 -- 06 ) and Lord Grenville ( served 1806 -- 07 ) in 1759 Lord Aberdeen ( served 1852 -- 55 ) and Lord Palmerston ( served 1855 -- 58 and 1859 -- 65 ) in 1784 Harold Wilson ( served 1964 -- 70 and 1974 -- 76 ) and Edward Heath ( served 1970 -- 74 ) in 1916 The decade of the 1730s was the most productive for births of five future Prime Ministers -- Lord Rockingham ( born 1730, served 1765 -- 66 and 1782 ), Lord North ( born 1732, served 1770 -- 82 ), the Duke of Grafton ( born 1735, served 1768 -- 70 ), Lord Shelburne ( born 1737, served 1782 -- 83 ) and the Duke of Portland ( 1738, served 1783 and 1807 -- 09 ). Longest lived Main article : List of Prime Ministers of the United Kingdom by longevity The longest - lived Prime Minister was James Callaghan, Baron Callaghan of Cardiff, who was born on 27 March 1912 and died on 26 March 2005 at the age of 92 years 364 days, which was the day before his 93rd birthday. Prior to this the longest living Prime Minister was Harold Macmillan, 1st Earl of Stockton, who was born on 10 February 1894 and died on 29 December 1986 ( aged 92 years, 322 days ). Of the four former Prime Ministers currently alive, the oldest is John Major, who was born on 29 March 1943 and is 75 years old. If he is still alive on 29 March 2036 ( his 93rd birthday ), he will surpass Callaghan 's record and become the longest - lived Prime Minister. Shortest lived The shortest - lived Prime Minister was the Duke of Devonshire, who was born on 8 May 1720 and died on 2 October 1764 at the age of 44 years and 147 days. Longest lived after office The Prime Minister who lived the longest after leaving office for the final time was the Duke of Grafton, who left office on 28 January 1770 and died on 14 March 1811, a total of 41 years and 45 days. In recent years, the Prime Minister who lived the longest after leaving office was Edward Heath, whose term ended on 4 March 1974 ; he died on 17 July 2005, 31 years and 135 days later. Shortest lived after office The Prime Minister who lived the shortest period after leaving office was Sir Henry Campbell - Bannerman, who resigned on 3 April 1908 and died just 19 days later on 22 April 1908, while still resident in 10 Downing Street. Intervals between terms of office The Duke of Portland was out of office between his two terms for 23 years and 101 days, from 19 December 1783 to 31 March 1807. The shortest interval ( or `` fastest comeback '' ) was achieved by Henry Pelham, who resigned on 10 February 1746 but returned to office two days later ( 12 February ) when Lord Bath had been invited to form a ministry but failed to do so. The shortest interval where an intervening ministry had been formed was achieved by Lord Melbourne, who was out of office after being dismissed on 14 November 1834 but returned following the end of successor Sir Robert Peel 's first ministry on 18 April 1835 -- 155 days ( under six months ) later. Female Prime Ministers Margaret Thatcher, the first female Prime Minister of the United Kingdom Of all Prime Ministers, only two have been female. Both were Conservative Party leaders. Margaret Thatcher ( served 1979 -- 90 ) Theresa May ( served 2016 -- present ) Birthplace Bonar Law 's childhood home in Rexton, New Brunswick. Two Prime Ministers were born in Ireland : Lord Shelburne was born in Dublin, Kingdom of Ireland before the Union of 1801. The Duke of Wellington was born in Ireland : in one of Athy, Dublin or Dalgan Castle. Bonar Law was born in the colony of New Brunswick in what is now Canada, the only Prime Minister born outside the British Isles. All other Prime Ministers were born either in England ( 47 ) or Scotland ( 7 ). ( Although generally considered a Welshman, David Lloyd George was actually born in Chorlton - on - Medlock, Lancashire. ) Facial hair British male Prime Ministers when in office have been predominately clean shaven men, except for the following ( as borne out by pictures ) : Bearded Benjamin Disraeli ( goatee ) ( served 1868 and 1874 -- 80 ) Lord Salisbury ( only Prime Minister to wear a full - set beard ; served 1885 -- 86, 1886 -- 92, 1895 -- 1902 ) Moustached when in office Arthur Balfour ( served 1902 -- 05 ) Sir Henry Campbell - Bannerman ( served 1905 -- 08 ) David Lloyd George ( served 1916 -- 22 ) Bonar Law ( served 1922 -- 23 ) Ramsay MacDonald ( served 1924 and 1929 -- 35 ) Neville Chamberlain ( served 1937 -- 40 ) Clement Attlee ( served 1945 -- 51 ) Sir Anthony Eden ( served 1955 -- 57 ) Harold Macmillan ( served 1957 -- 63 ) Side whiskers ( sideburns ) Lord Grey ( served 1830 -- 34 ) Lord Melbourne ( served 1834 and 1835 -- 41 ) Lord John Russell ( served 1846 -- 52 and 1865 -- 66 ) Lord Aberdeen ( served 1852 -- 55 ) Lord Palmerston ( served 1855 -- 58 and 1859 -- 65 ) Lord Derby ( served 1852, 1858 -- 59 and 1866 -- 68 ) William Ewart Gladstone ( served 1868 -- 74, 1880 -- 85, 1886 and 1892 -- 94 ) Ethnic minority Prime Ministers Benjamin Disraeli, the only ethnically Jewish Prime Minister of the United Kingdom The English are a majority within the United Kingdom. Several Prime Ministers have come from the other ethnic groups of the United Kingdom. Irish Lord Shelburne ( served 1782 -- 83 ; had a large amount of English ancestry ) The Duke of Wellington ( served 1828 -- 30 ) Lord Palmerston ( served 1855 -- 58 and 1859 -- 65 ) -- represented an English constituency Scottish Lord Bute ( served 1762 -- 63 ) Lord Aberdeen ( served 1852 -- 55 ) William Ewart Gladstone ( served 1868 -- 74, 1880 -- 85, 1886 and 1892 -- 94 ) -- born in England to Scottish parents, represented a Scottish constituency ( Midlothian ) for his final three terms in office Arthur Balfour ( served 1902 -- 05 ) Sir Henry Campbell - Bannerman ( served 1905 -- 08 ) Bonar Law ( served 1922 -- 23 ) -- born in Canada to Scottish parents Ramsay MacDonald ( served 1924 and 1929 -- 35 ) Tony Blair ( served 1997 -- 2007 ) -- born in Scotland, and went to school there, but subsequently lived in England Gordon Brown ( served 2007 -- 10 ) Welsh David Lloyd George ( served 1916 -- 22 ) -- Welsh - speaking, only Prime Minister from a non-English - speaking background Others First British Prime Minister of Asian descent -- Lord Liverpool whose mother was half - British, half - Indian ; her Indian forebears were Hindus who had converted to Roman Catholicism, making him Anglo - Indian. First ethnically Jewish British Prime Minister -- Benjamin Disraeli ( although religiously, his family joined the Church of England when he was nine ). Two other Prime Ministers are known to have had Jewish ancestors : James Callaghan 's paternal grandmother, Elizabeth Bernstein, was Jewish. David Cameron is a great - great - grandson of Emile Levita, a German Jewish financier and a direct descendant of Renaissance scholar Elia Levita. Through Levita, Cameron is a descendant of the Levites, who themselves claim to be descended from Moses. His wife, Cameron 's great - great - grandmother, was a descendant of the wealthy Danish Jewish Rée family on her father 's side. Religious minority Prime Ministers Britain 's Prime Ministers have been predominately Anglican by denomination, in an office which has had input into the appointment of that Church 's bishops. The first to hold the office from outside the English established church was Lord Bute, who was a member of the Scottish Episcopal Church, while the Duke of Grafton was the first to convert away by formally becoming a Unitarian, after leaving office. Tony Blair is the only British Prime Minister to become a Roman Catholic, albeit he converted after leaving office. Prime Ministers of other denominations ( when in office, unless otherwise stated ) were : Church of Scotland Arthur Balfour Sir Henry Campbell - Bannerman Gordon Brown Scottish Episcopal Church Lord Bute Sir Alec Douglas - Home Unitarian Church The Duke of Grafton -- Church of England when in office, became member of Unitarian congregation in London in 1774. Neville Chamberlain Congregationalist Church H.H. Asquith Harold Wilson Baptist David Lloyd George James Callaghan -- although he became atheist by the time he reached office while working as a trade union official. Free Church of Scotland Bonar Law Ramsay MacDonald Methodist Church of Great Britain Margaret Thatcher -- until 1951, was Anglican subsequently and while in office. Roman Catholic Church Tony Blair -- Anglican while in office, he converted to Catholicism after leaving office in 2007. Judaism Benjamin Disraeli -- until 1817, was Anglican subsequently and while in office. Disabled Prime Ministers At least seven Prime Ministers are known to have been physically disabled when in office : Lord Liverpool, who was incapacitated by a severe stroke on 17 February 1827, forcing him to retire from office on 9 April 1827. The Duke of Wellington, who was permanently deaf in his left ear after an operation ( intended to improve hearing ) in 1822. William Ewart Gladstone, who lost the forefinger of his left hand in an accident with a firearm in 1842. ( He also became partially blind by 1897, following his retirement from office. ) Sir Winston Churchill, who during his second term became increasingly deaf ( condition onset in 1949 ) and had a series of strokes that led to his retirement and using a wheelchair in later years. Harold Macmillan, who was left with a slight limp and poor strength in his right hand, affecting his handwriting, after several wounds in the First World War. Gordon Brown, who lost the sight of one eye in a school rugby accident at age of sixteen. Theresa May, who has type 1 diabetes. Others became disabled after leaving office, notably : The Duke of Newcastle, who was left lame and speech - impaired after a stroke in December 1767. Lord North, who lost his eyesight between 1786 and 1790. Lord Rosebery, whose movement, hearing and eyesight were increasingly impaired between a stroke in 1918 and his death in 1929. H.H. Asquith, who became a wheelchair user by his last year ( 1928 ) following a stroke. Stanley Baldwin, 1st Earl Baldwin of Bewdley, who became deaf by October 1947, when he had to ask if a crowd cheering were booing him. Prior to taking office, and while serving as an MP, Alec Douglas - Home was immobilized following an operation to treat spinal tuberculosis from 1940 to 1943. General elections Most Prime Ministers in office between general elections There have been two intervals between general elections, both in the 18th century, when on both occasions five successive Prime Ministers were in office. Between the general elections of 1761 and 1768 : the Duke of Newcastle ( resigned 26 May 1762 ), Lord Bute ( resigned 8 April 1763 ), George Grenville ( resigned 13 July 1765 ), Lord Rockingham ( resigned 30 July 1766 ) and Lord Chatham ( until dissolution of the parliament ). In the shorter interval between the general elections of 1780 and 1784 : Lord North ( resigned 22 March 1782 ), Lord Rockingham ( second ministry, died in office 1 July 1782 ), Lord Shelburne ( resigned 2 April 1783 ), the Duke of Portland ( resigned 19 December 1783 ) and William Pitt the Younger ( until dissolution of the parliament ). 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 ). Most general elections contested 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 an individual is five. Charles James Fox was unsuccessful after contesting the 1784, 1790, 1796, 1801 co-option and 1802 general elections, and subsequently never became Prime Minister. The most number of general elections won by an individual is four. Robert Walpole, Lord Liverpool, William Ewart Gladstone and Harold Wilson would all win four general elections. Age at losing a general election The youngest person to be on the losing side at a general election was Charles James Fox, who led his Whig Party to defeat in the 1784 general election when aged 35. The youngest Prime Minister to be on the losing side at a general election was Lord Rosebery, who, having resigned his ministry in May 1895, led his Liberal Party to defeat in the general election the following month when aged 48. Since peers ceased to hold this office ( 1902 ), the youngest losing Prime Minister was John Major, at 54 years and 33 days when the Conservative Party lost the 1997 general election. William Ewart Gladstone, was the oldest, at 76 years, when his party lost the 1886 general election, although he returned to office in 1892. The oldest Prime Minister to be defeated without returning to office was Benjamin Disraeli, 1st Earl of Beaconsfield, who was 75 when the Conservative Party lost the 1880 general election. Age at winning a general election The youngest Prime Minister to be on the winning side at a general election was William Pitt the Younger, who led his Tory Party to victory in the 1784 general election when aged 25. In recent years, the youngest Prime Minister to be on the winning side at a general election was David Cameron, who was 43 years and 209 days old when he led his Conservative Party to victory in the 2010 general election. William Ewart Gladstone, was the oldest. He was 82 years of age when he returned to office after his Liberal Party were successful in the 1892 general election. The oldest Prime Minister to be victorious at a general election for the first time was Lord Palmerston, who was 72 years of age when his Whig Party won the 1857 general election. Prime Ministers in office without a general election Fourteen Prime Ministers never fought a general election while they held office ( or to gain office ), usually by serving terms sandwiched between the victor of one election and the Prime Minister who faced the next. Chronologically they were : Lord Wilmington The Duke of Devonshire Lord Bute George Grenville The Duke of Grafton Lord Rockingham ( served both his terms election-less ) Lord Shelburne Spencer Perceval George Canning Lord Goderich Lord Aberdeen Lord Rosebery Arthur Balfour Neville Chamberlain Prime Ministers who served from ( or later entered ) the House of Lords Main article : List of peerages held by Prime Ministers of the United Kingdom John Russell was unique in serving one entire term at Downing Street as Commons MP, when known as Lord John Russell ( as younger son of a Duke of Bedford ) in 1846 -- 52, and his second and last entirely as a member of the Lords as the 1st Earl Russell in 1865 -- 66, having been raised to the peerage between terms in 1861. Without counting Lord Russell, eighteen Prime Ministers served their entire terms from the House of Lords where they were already members, chronologically : Lord Wilmington The Duke of Newcastle The Duke of Devonshire Lord Bute Lord Rockingham The Duke of Grafton Lord Shelburne ( later Lord Lansdowne ) Duke of Portland Lord Grenville Lord Liverpool Lord Goderich ( later Lord Ripon ) The Duke of Wellington Lord Grey Lord Melbourne Lord Derby Lord Aberdeen Lord Salisbury Lord Rosebery * ^ These five Prime Ministers never served in the House of Commons during their political careers. Three Prime Ministers were elevated from the Commons to the House of Lords during their terms through being raised to the peerage : Sir Robert Walpole, made the 1st Earl of Orford five days before formally resigning in 1742. William Pitt the Elder, made the 1st Earl of Chatham five days after taking office in 1766. Benjamin Disraeli, made the 1st Earl of Beaconsfield in 1876, two years after taking his second term of office in 1874. Lord North succeeded to his father 's peerage as the 2nd Earl of Guilford in 1790 after being in office. Sir Alec Douglas - Home disclaimed his hereditary peerage as the 14th Earl of Home four days after coming to office in 1963 ( under the Peerage Act of that year ), giving up his seat in the Lords and subsequently sat in the Commons after succeeding in a by - election, pending which for 20 days he held office from neither House. He returned to the Lords when made life peer as Baron Home of the Hirsel in 1974. 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 : Henry Addington became the 1st Viscount Sidmouth in 1805 Arthur Balfour became the 1st Earl of Balfour in 1922 H.H. Asquith became the 1st Earl of Oxford and Asquith in 1925 Stanley Baldwin became the 1st Earl Baldwin of Bewdley in 1937 David Lloyd - George became the 1st Earl Lloyd - George of Dwyfor in 1945 ( 22 years after being Prime Minister -- although he did not live to take his seat in the Lords ) Clement Attlee became the 1st Earl Attlee in 1955 Sir Anthony Eden became the 1st Earl of Avon in 1961 Harold Wilson became Baron Wilson of Rievaulx in 1983 ( life peer ) Harold Macmillan became the 1st Earl of Stockton in 1984 James Callaghan became Baron Callaghan of Cardiff in 1987 ( life peer ) Margaret Thatcher became Baroness Thatcher in 1992 ( life peer ) 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 elected from among their peers ) legally did not sit in the House of Lords in the Parliaments of Great Britain and the United Kingdom, but were allowed to sit in the House of Commons. Lord Palmerston was the only Irish peer to serve as Prime Minister, thus leading from the House of Commons. Service in House of Commons Main article : List of United Kingdom Parliament constituencies represented by sitting Prime Ministers The shortest period between entering Parliament and being appointed Prime Minister was achieved by William Pitt the Younger who became Prime Minister two years after first becoming an MP. The longest period of service as an MP before becoming Prime Minister was 47 years for Lord Palmerston. The oldest debut of a future Prime Minister as MP was by Neville Chamberlain who was elected, aged 49 years 261 days, at general election in 1918. The youngest at first election was Lord Euston ( later the Duke of Grafton ), who was elected at by election on 10 December 1756 aged 21 years and 73 days. He also had the shortest period as an MP enjoyed by a Prime Minister, nearly five months, representing two successive seats ( the first of which he only held for 11 days before being elected for his second ) until going to the House of Lords when he succeeded his father as the 3rd Duke of Grafton on 6 May 1757, eleven years before his term of office began. The longest service as MP was enjoyed by Sir Winston Churchill, who sat for a total of 63 years and 360 days, for five successive seats, between 1 October 1900 and retiring on 25 September 1964, excluding two intervals out of parliament ( in 1908 and 1922 -- 24 ), retiring as Father of the House. He was in the Commons throughout both his terms as Prime Minister, and his service covered the terms of eleven other Prime Ministers, from Lord Salisbury ( second ministry ) to Sir Alec Douglas - Home, but did not serve under Bonar Law who was in office when Churchill was briefly out of parliament. David Lloyd George had the longest unbroken career as an MP, for one seat, Carnarvon Boroughs, from a by - election on 10 April 1890 until his death ( having received a peerage on 1 January 1945 but not been able to take his seat in the Lords ) on 26 March 1945 -- a period of 54 years and 350 days. From 1929 he had been Father of the House. It also covered the successive terms of eleven other Prime Ministers, from Lord Salisbury ( first ministry ) to Winston Churchill ( first ministry ). Of intervals between service in the Commons, Sir Alec Douglas - Home had the longest between automatically vacating his seat at Lanark on 11 July 1951 by succeeding his father and going to the House of Lords as the 14th Earl of Home, and gaining his next seat at Kinross and Western Perthshire in a by - election on 7 November 1963 -- a total of 12 years 123 days -- after becoming Prime Minister and disclaiming his hereditary peerage. He had a previous interval out of the Commons between defeat in the 1945 General Election and returning in that of 1950 more than four years later. Of parliamentary constituencies that have been represented, none have been represented by more than one serving Prime Minister. Four future Prime Ministers sat for Newport, Isle of Wight ( constituency abolished 1832 ) : Lord Palmerston and Sir Arthur Wellesley ( later the Duke of Wellington ) in 1807 -- 09, George Canning in 1826 -- 27 and William Lamb, later Lord Melbourne in April -- May 1827. Prime Ministers who were father of the House Five Prime Ministers through longest unbroken service became Father of the House. Sir Henry Campbell - Bannerman was the first Prime Minister to achieve this status, uniquely while in office, in 1907. He was still serving as an MP when he died shortly after retiring as Prime Minister. The others listed below became Father after the end of their terms. James Callaghan only 4 years and 36 days after end of office, while at the other extreme Edward Heath became Father 18 years after the end of his. Name Entered House Prime Minister Became Father Left House Party Constituency Sir Henry Campbell - Bannerman 1868 1905 -- 1908 1907 1908 ( died ) Liberal Stirling Burghs David Lloyd George 1890 1916 -- 1922 1929 1945 Liberal Caernarvon Boroughs Sir Winston Churchill 1900 1940 -- 1945 1951 -- 1955 1959 1964 Conservative Oldham ( 1900 -- 06 ) Manchester North West ( 1906 -- 08 ) Dundee ( 1908 -- 22 ) Epping ( 1924 -- 45 ) Woodford ( 1945 -- 64 ) James Callaghan 1945 1976 -- 1979 Labour Cardiff South and Penarth Sir Edward Heath 1950 1970 -- 1974 Conservative Old Bexley and Sidcup Education Main article : List of Prime Ministers of the United Kingdom by education School with most alumni Prime Ministers -- Eton College -- 19 ( chronologically Sir Robert Walpole to David Cameron ) University with most alumni Prime Ministers -- Oxford University -- 27 ( Lord Wilmington to Theresa May ) University college with most alumni Prime Ministers -- Christ Church, Oxford -- 13 ( George Grenville to Sir Alec Douglas - Home ) Vocational institution with most Prime Ministers as students -- The Inns of Court -- 11 ( Lord Wilmington to Tony Blair ). Of these, eight passed through Lincoln 's Inn ( William Pitt the Younger to Tony Blair ). The first Prime Minister never to have been a university graduate was the Duke of Devonshire ( served 1756 -- 57 ), the last ( as of 2018 ) was John Major ( served 1990 -- 97 ). Armed forces veterans The earliest Prime Minister to be an armed forces veteran was Henry Pelham, Prime Minister in 1743 -- 54, who had served as a volunteer soldier in Dormer 's regiment during the Jacobite rising of 1715 and fought at the Battle of Preston that year against the Jacobite forces. As of 2018 the last Prime Minister to be an armed forces veteran was James Callaghan, Prime Minister in 1976 -- 79, who served in the Royal Navy in the Second World War, from 1942 to 1945, seeing action with the East Indies Fleet and reaching the rank of Lieutenant. He was the only future Prime Minister to serve in the navy rather than the army. In contrast to many nations, Britain has had only two Prime Ministers who have been military generals : Lord Shelburne, Prime Minister in 1782 -- 83, who was promoted from Lieutenant - General to full General in the British Army in the latter year, and the Duke of Wellington, who achieved the supreme rank of Field Marshal in 1813. He was Prime Minister twice, in 1828 -- 30 and 1834, in the interval between his two terms as Commander - in - Chief of the Forces. During his military career he took part in some 60 battles, seeing more wartime combat than any other future Prime Minister. No future Prime Ministers have yet served in the flying services, although Neville Chamberlain, Prime Minister in 1937 -- 40, and Sir Winston Churchill, Prime Minister in 1940 -- 45 and 1951 -- 55, were honorary Air Commodores in the Auxiliary Air Force during their respective terms of office. Active service veterans Jacobite Rising ( 1715 ) Henry Pelham -- Dormer 's Regiment -- fought Battle of Preston Jacobite Rising ( 1745 ) Lord Rockingham -- Colonel of volunteers raised against invasion from Scotland Seven Years ' War Lord Shelburne, Colonel, 20th Foot -- Canada, France, Germany French Revolutionary and Napoleonic Wars The Duke of Wellington, Field Marshal, Army -- Flanders, India, Peninsular War and Waterloo Campaign In addition, the following served in home based militia, volunteer or yeomanry units raised during the same wars but were not deployed abroad : William Pitt the Younger, Colonel of volunteers ( was serving when died in office 1806 ) Lord Grenville, Major of yeomanry, Lieutenant - Colonel of volunteers Henry Addington, Captain of volunteers Spencer Perceval, Volunteer, London and Westminster Light Horse Lord Liverpool, Colonel of fencible cavalry, later of militia Lord Goderich, Major of yeomanry Sir Robert Peel, Captain of militia Lord Melbourne, Major of volunteer infantry Lord Palmerston, Captain of volunteers, Lieutenant - Colonel of militia Lord Russell, Captain of militia Mahdist War Sir Winston Churchill, Lieutenant, 4th Queen 's Own Hussars, attached 21st Lancers Boer War Sir Winston Churchill, Lieutenant, South African Light Horse and war correspondent ( prisoner of war ) First World War Sir Winston Churchill, Major, Grenadier Guards, later Lieutenant - Colonel, Royal Scots Fusiliers -- Western Front Clement Attlee, Major, South Lancashire Regiment -- Gallipoli Campaign, Mesopotamian campaign and Western Front ( wounded ) Sir Anthony Eden, Major, Rifle Brigade -- Western Front Harold Macmillan, Captain, Grenadier Guards -- Western Front ( wounded ) Second World War Note : Although Eden and Sir Alec Douglas - Home were Territorial Army officers at outbreak of war in 1939, neither was mobilised and the latter was invalided due to disabling spinal tuberculosis. Edward Heath, Lieutenant - Colonel, Royal Artillery, North West Europe James Callaghan, Lieutenant, Royal Navy, East Indies War bereaved Prime Ministers The following lost close relations in their lifetimes as a result of war : Lord Rosebery -- one son killed in action, First World War H.H. Asquith -- one son killed in action, First World War ( during his father 's period in office ) Bonar Law -- two sons killed in action, First World War Anthony Eden -- two brothers killed in action, First World War, and one son killed in action, Second World War Alec Douglas - Home -- one brother killed on active service, Second World War Also : Lord Bute -- one male line grandson ( born in his lifetime ) died serving aboard ship in the Napoleonic War William Ewart Gladstone -- two male line grandsons ( born in his lifetime ) were killed in action, First World War Lord Salisbury -- four male line grandsons ( born in his lifetime ) were killed in action, First World War Decorated Winston Churchill in uniform Duke of Wellington in uniform The most decorated British Prime Minister was Sir Winston Churchill, KG, OM, CH, TD, who received a total of 38 orders, decorations and medals, from the United Kingdom and thirteen other states ( on continents of Europe, Africa, Asia and North America ). Ten were awarded for active service as an Army officer in Cuba, India, Egypt, South Africa, the United Kingdom, France and Belgium. The greater number of awards were given in recognition of his service as a minister of the British government. Churchill was also the first and so far only British Prime Minister to receive a Nobel Prize ( for Literature, in 1953 ). The most widely decorated Prime Minister by the number of states from which he received honours was the Duke of Wellington, KG, GCB, GCH, who is known to have received 28 orders, decorations and medals from the United Kingdom and seventeen other states ( all in Europe ), in recognition of his military services. The British order of knighthood most frequently conferred on Prime Ministers has been the Order of the Garter, of which 30 male Prime Ministers ( beginning with Sir Robert Walpole and later including Sir Winston Churchill and Sir Anthony Eden ) have been Knight Companions ( KG ) and the first female, Margaret Thatcher, a Lady Companion ( LG ) of the Order. Nine Prime Ministers, including Thatcher, received it after serving office. As of 2018, the only currently living Knight among them is John Major, knighted in 2005. The first and so far only Prime Minister to have received a British gallantry award was Sir Anthony Eden who won the Military Cross ( MC ) while serving in the army in the First World War, before entering parliament. Number of living former Prime Ministers Main article : Living Prime Ministers of the United Kingdom None After Sir Robert Walpole, three other Prime Ministers have been in office at a time when no former Prime Ministers were alive : Henry Pelham from the death of Robert Walpole, 1st Earl of Orford, in 1745 until his own death in 1754. The Duke of Newcastle from the death of Pelham in 1754 until the end of his first term in 1756. William Ewart Gladstone from the death of Disraeli in 1881 until the end of his second term in 1885. One After Lord Wilmington, eleven other Prime Ministers have been in office at a time when only one former Prime Minister has been alive : Henry Pelham from his appointment in August 1743 until the death of Robert Walpole, 1st Earl of Orford, in March 1745 only Walpole would be alive. The Duke of Newcastle in his second term, ( July 1757 to May 1762 ) only the Duke of Devonshire would be alive. The Duke of Devonshire in his term, ( November 1756 to June 1757 ) only the Duke of Newcastle would be alive. Lord Russell in his second term, ( October 1865 to June 1866 ) only Lord Derby would be alive. Lord Derby in his third term, ( June 1866 to February 1868 ) only Lord Russell would be alive. Benjamin Disraeli, 1st Earl of Beaconsfield, from the death of Lord Russell in May 1878 until the end of his second term in April 1880, only William Ewart Gladstone would be alive. William Ewart Gladstone from his second appointment in April 1880 until the death of Benjamin Disraeli, 1st Earl of Beaconsfield, in April 1881 only Disraeli would be alive. And in his third term ( February 1886 to July 1886 ) and his fourth term ( August 1892 to March 1894 ) only Lord Salisbury would be alive. Lord Salisbury in his first term ( June 1885 to January 1886 ) and second term ( July 1886 to August 1892 ), only William Ewart Gladstone would be alive. And from the death of Gladstone in May 1898 until the end of his third term in July 1902 only Lord Rosebery would be alive. Arthur Balfour from the death of Lord Salisbury in August 1903 until the end of his term in December 1905 only Lord Rosebery would be alive. Sir Winston Churchill in his second term, ( October 1951 to April 1955 ) only Clement Attlee would be alive. Clement Attlee from the death of Stanley Baldwin, 1st Earl Baldwin of Bewdley, in November 1947 until the end of his term in October 1951 only Winston Churchill would be alive. Most The most living former Prime Ministers at any one time has been five, which has happened several times : the first time was between January and November 1770 ( while Lord North was in office ) and Lord Bute, George Grenville, Lord Rockingham, Pitt the Elder and the Duke of Grafton were still alive ( Grenville died in November 1770 ) ; from 1964 to 1965 ( while Wilson was in office ) with Clement Attlee, Sir Winston Churchill, Sir Anthony Eden, Harold Macmillan and Sir Alec Douglas - Home ( Churchill died in January 1965 ) ; from April 1976 to January 1977 ( while Callaghan was in office ) with Sir Anthony Eden, Harold Macmillan, Sir Alec Douglas - Home, Harold Wilson and Edward Heath ( Eden died in January 1977 ) ; from May 1979 to December 1986 ( while Thatcher was in office ) with Harold Macmillan, 1st Earl of Stockton ; Alec Douglas - Home, Baron Home of the Hirsel ; Sir Harold Wilson ; Edward Heath ; and James Callaghan ( Macmillan died in December 1986 ). The most recent was between November 1990 and May 1995 ( while John Major was in office ) and Home, Wilson, Heath, Callaghan and Thatcher were still alive ( Wilson died in May 1995 ). Living former Prime Ministers Currently there are four living former Prime Ministers, as of July 2018. From oldest to youngest : Sir John Major served 1990 -- 97 born 1943 ( age 75 ) Gordon Brown served 2007 -- 10 born 1951 ( age 67 ) Tony Blair served 1997 -- 2007 born 1953 ( age 65 ) David Cameron served 2010 -- 16 born 1966 ( age 51 ) 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 ). Died in office Seven Prime Ministers have died in office : Lord Wilmington, who died on 2 July 1743, aged 70. Henry Pelham, who died on 6 March 1754, aged 59. Lord Rockingham, who died on 1 July 1782, aged 52. William Pitt the Younger, who died on 23 January 1806, aged 46, the youngest to die in office. Spencer Perceval, who was assassinated by John Bellingham on 11 May 1812, aged 49. George Canning, who died on 8 August 1827, aged 57. Lord Palmerston, who died on 18 October 1865, aged 80 ( two days before his 81st birthday ) ; the oldest to die 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 only Prime Minister ever to do so. Others who died within the same year they were Prime Minister were the Duke of Portland who died in 1809, 26 days after he left office and Neville Chamberlain, who died in 1940, six months ( less a day ) after he left office, of a cancer that was undiagnosed at the time of his resignation. Died while immediate successor was in office Nine Prime Ministers have died while their immediate successor was in office : The Duke of Portland died during Spencer Perceval 's term. Sir Robert Peel died during Lord John Russell 's first term. Lord Aberdeen died during Lord Palmerston 's second term. Benjamin Disraeli, 1st Earl of Beaconsfield, died during William Ewart Gladstone 's second term. William Ewart Gladstone died during Lord Salisbury 's third term. Lord Salisbury died during Arthur Balfour 's term. Sir Henry Campbell - Bannerman died during H.H. Asquith 's term. Bonar Law died during Stanley Baldwin 's first term. Neville Chamberlain died during Winston Churchill 's first term. All of the above - listed Prime Ministers were older than their immediate successors. The Duke of Portland and Lord Aberdeen are the only ones among this list who have both had immediate successors to die in office. Married Further information : Spouse of the Prime Minister of the United Kingdom The longest - married Prime Minister was James Callaghan who was married to his wife Audrey for 66 years from July 1938 until her death on 15 March 2005. Three Prime Ministers married while in office, all to second wives : Sir Robert Walpole to Maria Skerrett before 3 March 1738 ; she died after a miscarriage on 4 June that year, after at least 93 days ' marriage, making this the shortest marriage enjoyed by a Prime Minister ( although she previously cohabited as his mistress ). The Duke of Grafton to Elizabeth Wrottesley on 24 June 1769 ; she survived him, dying in 1822. Lord Liverpool to Lady Maria Chester on 24 September 1822 ; she survived him. Widowed Widowed the longest The British Prime Minister widowed the longest is Lord Rosebery who died more than 38 years after his wife. Recently, the British Prime Minister widowed the longest is Harold Macmillan, who was widowed from 21 May 1966 to his death on 29 December 1986, a total of over 20 years. Widowed the shortest The British Prime Minister widowed the shortest is James Callaghan, who died on 26 March 2005. His wife, Audrey Callaghan, died on 15 March 2005, only 11 days before him. Other widowed Prime Ministers Sir Robert Walpole ( twice widowed, when in office : 1737 and 1738 ) The Duke of Devonshire George Grenville Lord Shelburne ( twice widowed ) Henry Addington Lord Liverpool ( widowed when in office : 1821 ; remarried ) The Duke of Wellington Lord Melbourne Lord Russell ( remarried ) Lord Aberdeen ( twice widowed ) Benjamin Disraeli Lord Salisbury ( when in office : 1899 ) Sir Henry Campbell - Bannerman ( when in office : 1906 ) H.H. Asquith ( remarried ) David Lloyd George ( remarried ) Bonar Law Stanley Baldwin Ramsay MacDonald Clement Attlee Alec Douglas - Home Margaret Thatcher Divorced Only two British Prime Ministers have been divorced : The Duke of Grafton divorced his first wife, Anne ( née Liddell ), by Act of Parliament passed 23 March 1769, during his term of office, then remarried on 24 June that year to Elizabeth Wrottesley. ( Anne remarried on 26 March 1769 to John FitzPatrick, 2nd Earl of Upper Ossory and died in 1804 in Grafton 's lifetime. ) Sir Anthony Eden, divorced his first wife Beatrice ( née Beckett ) in 1950 then remarried two years later to Clarissa Spencer - Churchill on 14 August 1952, before his term of office began. ( Beatrice never remarried and died in 1957 in Eden 's lifetime. ) Kindred Prime Ministers At least 24 British Prime Ministers were related to at least one other Prime Minister by blood or marriage. Fathers and sons Two sets of father and son have successively held the office : Lord Chatham ( aka `` Pitt the Elder '' ) and William Pitt the Younger George Grenville and Lord Grenville Brothers The only brothers to hold the office were Henry Pelham, who was succeeded on his death in 1754 by the Duke of Newcastle. Full cousins Pitt the Younger and Lord Grenville ( who directly succeeded the latter in office ) were the only set of full cousins to hold the office, their fathers being brothers - in - law. Uncles and nephews There have been three blood uncle - nephew sets of Prime Ministers : Lord Chatham and Lord Grenville George Grenville and William Pitt the Younger Lord Salisbury and Arthur Balfour, who succeeded Salisbury in office after the latter 's last term. The phrase `` Bob 's your uncle '' is said to have originated in connection with this set, from ministerial promotions Balfour gained under Salisbury. Great - great - uncle and great - great - nephew Lord Wilmington was two - greats uncle of Spencer Perceval, whose mother, Catherine ( née Compton ), Baroness Arden, was a blood great - niece of Wilmington. Father - in - Law and son - in - Law The Duke of Portland, married in 1766 Lady Dorothy Cavendish, daughter of the Duke of Devonshire ( who had died in 1764 ). Brothers - in - Law Pitt the Elder was married from 1754 to George Grenville 's sister Hester. Lord Palmerston was married from 1839 to Lord Melbourne 's sister Emily, dowager Countess Cowper. Uncle - in - Law and nephew - in - Law Sir Winston Churchill and Sir Anthony Eden. In 1952, during Churchill 's second term, Eden married Clarissa, daughter of John Strange Spencer - Churchill, Winston 's brother, before succeeding to the office. Great - uncle - in - Law and great - nephew - in - Law Lord Grenville was married from 1792 to Anne Pitt, daughter of Thomas Pitt, 1st Baron Camelford who was a nephew of William Pitt the Elder. Other connections The Duke of Devonshire had family connections in different ways with five further Prime Ministers : Sir Robert Walpole, 1st Earl of Orford -- Devonshire 's sister Lady Rachel Cavendish was married from 1748 to Horatio Walpole, 1st Earl of Orford ( second creation ), whose father, Horatio Walpole, 1st Baron Walpole was Robert 's brother. Lord Shelburne, later Lord Lansdowne, whose great - grandson Henry Petty - Fitzmaurice, 5th Marquess of Lansdowne was father of Lady Evelyn Fitzmaurice who married in 1892 the 4th Duke 's great - great - grandson Victor Cavendish, 9th Duke of Devonshire and also became mother - in - law of Harold Macmillan through her daughter Lady Dorothy Macmillan. Lord Melbourne, whose brother, George Lamb, married in 1809 Lady Caroline St Jules, daughter of William Cavendish, 5th Duke of Devonshire and granddaughter of the 4th Duke. Lord Russell, later the 1st Earl Russell, who became great - great uncle of Lady Dorothy Macmillan, the wife of Harold Macmillan. ( The intervening chain of descent being Russell 's sister, Louisa Hamilton, Duchess of Abercorn, who was mother of Maud Petty - Fitzmaurice, Marchioness of Lansdowne, in turn mother of Evelyn Cavendish, Duchess of Devonshire, the mother of Dorothy. ) Harold Macmillan, who married in 1920 Lady Dorothy Cavendish, daughter of the 9th Duke of Devonshire and 3 - greats - granddaughter of the 4th Duke. Lord John Russell, later the 1st Earl Russell, was connected in different ways to two further Prime Ministers : Lord Aberdeen, whose first wife, Lady Catherine Hamilton was sister of James Hamilton, Viscount Hamilton, who was father of James Hamilton, 1st Duke of Abercorn who in 1832 married Russell 's sister, Lady Louisa Jane Russell. Sir Winston Churchill twice : Churchill 's paternal great - great grandfather George Spencer, 4th Duke of Marlborough married in 1762 Lady Caroline Russell, daughter of John Russell, 4th Duke of Bedford, who was Lord Russell 's paternal grandfather via the 6th Duke of Bedford. Churchill 's paternal uncle, George Spencer - Churchill, 8th Duke of Marlborough, married in 1868 Lady Albertha Hamilton daughter of the above 1st Duke of Abercorn. Frederick North, Lord North ( later Lord Guilford ) and Lord Bute -- North 's granddaughter, Lady Maria North, married Bute 's great - grandson John Crichton - Stuart, 2nd Marquess of Bute. The Duke of Wellington and Lord Salisbury -- Salisbury 's paternal aunt Lady Georgiana Cecil married Henry Wellesley, 1st Baron Cowley, Wellington 's brother. Lord Derby and Lord Rosebery -- Rosebery 's son Neil Primrose, married in 1915 Lady Victoria Stanley, daughter of the 17th Earl of Derby and great - granddaughter of the 14th Earl. Miscellaneous The Prime Minister who had the most children is Lord Grey, who fathered 17 children ( 16 legitimate, one illegitimate ). The tallest Prime Minister is believed to be Lord Salisbury, who was around 6 feet 4 inches ( 1.93 m ) in height, although Downing Street 's own website lists 6 - foot - 1 - inch ( 1.85 m ) James Callaghan as the tallest. The longest personal name held by a British Prime Minister was that of Lord Derby whose three forenames and double - barreled surname -- Edward George Geoffrey Smith - Stanley -- total 32 letters. The shortest baptismal names, each 10 letters long, were held by Lord Bute who was plain John Stuart, and Sir Robert Peel. John Major was baptised `` John Roy Major '' but his birth certificate simply read `` John Major '', and so his legal name has only nine letters. ( He used the middle name until the 1980s. ) The richest Prime Minister was Lord Derby, with a personal fortune of over £ 7 million ( about £ 444 million in today 's money ). The poorest was William Pitt the Younger, who was £ 40,000 ( now over £ 1 million ) in debt by 1800. Three Prime Ministers ultimately died as a result of accidents : Lord Bute ( fall at a home in Hampshire, died from complications at his London home ) on 10 March 1792, aged 78, nearly 29 years after leaving office. Sir Robert Peel ( fall from his horse while riding in London ), on 2 July 1850, aged 62, four years after leaving office. Lord Salisbury ( fall from his chair at Hatfield House ), on 23 August 1903, aged 73, the year after leaving office. See also British politics portal List of British monarchy records List of current heads of government in the United Kingdom and dependencies List of United Kingdom Parliament constituencies represented by sitting Prime Ministers References Jump up ^ D. Leonard 2008 Nineteenth - Century British Premiers : Pitt to Rosebery. Palgrave Macmillan : p. 82. Jump up ^ Liverpool 's mother, Amelia Jenkinson ( nee Watts ) was daughter of an East India Company official. Jump up ^ Kenneth O. Morgan, Callaghan : A Life, 1997, p. 5 `` His father 's mother was Elizabeth Bernstein, from Sheffield ; he was, therefore, a quarter Jewish as well. '' Jump up ^ `` David Cameron ' could be a direct descendant of Moses ' ''. The Times. London. 10 July 2009. ( subscription required ) Jump up ^ Fischer, Joseph ( 1912 ). Hartvig Philip Rée og hans slægt ; udg. paa Foranledning af Eduard Rée. Copenhagen. pp. 47, 56, 59, 61, 62 & 64 Jump up ^ The Legal Observer, or, Journal of Jurisprudence, Volume 12 ( 1837 ? ), p. 534 Jump up ^ Oxford Dictionary of National Biography, Volume 19. Oxford University Press. 2004. p. 924. ISBN 0 - 19 - 861369 - 5. Jump up ^ `` James Callaghan ''. infobritain.co.uk. Archived from the original on 24 September 2015. Retrieved 16 August 2015. Jump up ^ `` Archived copy ''. Archived from the original on 2015 - 03 - 30. Retrieved 2015 - 09 - 14. Spartacus Educational website biography on Lord Liverpool. Jump up ^ W. Attenborough, Churchill and the Black Dog of Depression ( 2014 ), pp. 175 -- 186. Jump up ^ ( 1 ) Spartacus Educational website biography on Harold Macmillan. Jump up ^ Gaby Hinsliff ( 10 October 2009 ). `` How Gordon Brown 's loss of an eye informs his view of the world ''. The Observer. Archived from the original on 28 December 2013. Jump up ^ `` Home Secretary Theresa May diagnosed with Type 1 diabetes ''. BBC News. 28 July 2013. Retrieved 7 June 2017. Jump up ^ Baldwin : A Biography by Keith Middlemass and John Barnes ( 1969 ), page 1070. Publisher, Weidenfeld and Nicolson. Jump up ^ Balfour resigned on 5 December 1905 but was immediately succeeded by his then Liberal opponent, Campbell - Bannerman, who did not hold the next general election until January 1906. Balfour contested this as Leader of the Conservative Party and lost. Jump up ^ Dermot Englefield ( 1995 ), Facts About the British Prime Ministers, H.W. Wilson Co, ISBN 978 - 0 - 8242 - 0863 - 9 Jump up ^ Medals in this context mean wearable awards, not including prize medals such as those accompanying the Nobel Prizes. Jump up ^ The Orders, Decorations and Medals of Sir Winston Churchill -- The Churchill Centre Jump up ^ Before Churchill, the most decorated was the Duke of Wellington, whose orders, decorations and medals totaled at least 28. Jump up ^ Trahair, R.C.S. ( 1994 ). From Aristotelian to Reaganomics : A Dictionary of Eponyms With Biographies in the Social Science. Greenwood Publishing Group. p. 72. Retrieved 30 July 2012. Jump up ^ Bernstein, Jonathan ( 2006 ). Knickers in a Twist : A Dictionary of British Slang. Canongate U.S. p. 65. Retrieved 4 August 2012. Jump up ^ Englefield, Dermot ; Janet Seaton ; Isobel White ( 1995 ). Facts About the British Prime Ministers. Mansell. p. 374. Jump up ^ `` James Callaghan ''. 10 Downing Street. Archived from the original on 2007 - 06 - 25. Jump up ^ `` John Major ''. History and Tour. 10 Downing Street. Archived from the original on 11 October 2008. Retrieved 31 October 2008. Jump up ^ `` Richest British Prime Minister ''. guinnessworldrecords.com. Retrieved 12 - 04 - 2013. Check date values in : accessdate = ( help ) Jump up ^ `` PITT, Hon. William ( 1759 -- 1806 ), of Holwood and Walmer Castle, Kent ''. The History of Parliament. Retrieved 1 July 2016. Jump up ^ `` William Pitt the Younger ''. Regency History. Retrieved 1 July 2016. hide Lists relating to Prime Ministers of the United Kingdom List of Prime Ministers of the United Kingdom Lists by order Age Constituencies Cultural depictions Governments votes of no confidence Historical rankings Number living Records Service ( timeline ) Term length Peerages By monarch Victoria Edward VII George V Edward VIII George VI Elizabeth II Personal life Burial places Coats of arms Education Nickname Spouse In fiction Fictional Prime Ministers Retrieved from `` https://en.wikipedia.org/w/index.php?title=Records_of_Prime_Ministers_of_the_United_Kingdom&oldid=849352020 '' Categories : Parliamentary records of the United Kingdom Lists of Prime Ministers of the United Kingdom Hidden categories : Pages containing links to subscription - only content CS1 errors : dates Wikipedia articles needing reorganization from February 2017 Articles needing additional references from July 2016 All articles needing additional references Articles with multiple maintenance issues Talk Contents About Wikipedia Add links This page was last edited on 8 July 2018, at 11 : 52 ( UTC ). 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Question: who is the longest serving prime minister of uk
Answer: Sir Robert Walpole