Prime Ministers of Britain ************************** The Prime Minister is the political leader of the United Kingdom and is the head of the Government. So far there have been 12 Prime Ministers during the reign of Queen Elizabeth II (Harold Wilson serving twice, in 1964 and again in 1974). 1721-42 Sir Robert Walpole, Whig 1742-43 Earl of Wilmington, Whig 1743-54 Henry Pelham, Whig 1754-56 Duke of Newcastle, Whig 1756-57 Duke of Devonshire, Whig 1757-62 Duke of Newcastle, Whig 1762-63 Earl of Bute, Tory 1763-65 George Grenville, Whig 1765-66 Marquess of Rockingham, Whig 1767-70 Duke of Grafton, Whig 1770-82 Lord North, Tory 1782 Marquess of Rockingham, Whig 1782-83 Earl of Shelburne, Whig 1783 Duke of Portland, coalition 1783-1801 William Pitt the Younger, Tory 1801-04 Henry Addington, Tory 1804-06 William Pitt the Younger, Tory 1806-07 Lord Grenville, coalition 1807-09 Duke of Portland, Tory 1809-12 Spencer Perceval, Tory 1812-27 Earl of Liverpool, Tory 1827 George Canning, coalition 1827-28 Viscount Goderich, Tory 1828-30 Duke of Wellington, Tory 1830-34 Earl Grey, Whig 1834 Viscount Melbourne, Whig 1834-35 Sir Robert Peel, Whig 1835-41 Viscount Melbourne, Whig 1841-46 Sir Robert Peel, Conservative 1846-52 Lord Russell, Liberal 1852 Earl of Derby, Conservative 1852-55 Lord Aberdeen, Peelite 1855-58 Viscount Palmerston, Liberal 1858-59 Earl of Derby, Conservative 1859-65 Viscount Palmerston, Liberal 1865-66 Lord Russell, Liberal 1866-68 Earl of Derby, Conservative 1868 Benjamin Disraeli, Conservative 1868-74 W E Gladstone, Liberal 1874-80 Benjamin Disraeli, Conservative 1880-85 W E Gladstone, Liberal 1885-86 Marquess of Salisbury, Conservative 1886 W E Gladstone, Liberal 1886-92 Marquess of Salisbury, Conservative 1892-94 W E Gladstone, Liberal 1894-95 Earl of Rosebery, Liberal 1895-1902 Marquess of Salisbury, Conservative 1902-05 Arthur James Balfour, Conservative 1905-08 Sir H Campbell-Bannerman, Liberal 1908-15 H H Asquith, Liberal 1915-16 H H Asquith, coalition 1916-22 David Lloyd George, coalition 1922-23 Andrew Bonar Law, Conservative 1923-24 Stanley Baldwin, Conservative 1924 Ramsay MacDonald, Labour 1924-29 Stanley Baldwin, Conservative 1929-31 Ramsey MacDonald, Labour 1931-35 Ramsey MacDonald, national coalition 1935-37 Stanley Baldwin, national coalition 1937-40 Neville Chamberlain, national coalition 1940-45 Sir Winston Churchill, coalition 1945-51 Clement Attlee, Labour 1951-55 Sir Winston Churchill, Conservative 1955-57 Sir Anthony Eden, Conservative 1957-63 Harold Macmillan, Conservative 1963-64 Sir Alec Douglas-Home, Conservative 1964-70 Harold Wilson, Labour 1970-74 Edward Heath, Conservative 1974-76 Harold Wilson, Labour 1976-79 James Callaghan, Labour 1979-90 Margaret Thatcher, Conservative 1990-97 John Major, Conservative 1997-2007 Tony Blair, Labour 2007-2010 Gordon Brown, Labour 2010 David Cameron, Con / Lib coalition