Sir Robert Walpole
Whig
1721-42
Earl of Wilmington
Whig
1742-3
Henry Pelham
Whig
1743-54
Duke of Newcastle
Whig
1754-6
Duke of Devonshire
Whig
1756-7
Duke of Newcastle
Whig
1757-62
Earl of Bute
Tory
1762-3
George Greenville
Whig
1763-5
Marquis of Rockingham
Whig
1765-6
Earl of Chatham
Whig
1766-8
Duke of Grafton
Whig
1768-70
Lord North
Tory
1770-82
Marquis of Rockingham
Whig
1782
Earl of Shelburne
Whig
1782-3
Duke of Portland
Coalition
1783
William Pitt
Tory
1783-1801
Henry Addington
Tory
1801-4
William Pitt
Tory
1804-6
Lord William Greenville
Whig
1806-7
Duke of Portland
Tory
1807-9
Spencer Percival
Tory
1809-12
Earl of Liverpool
Tory
1812-27
George Canning
Tory
1827
Viscount Goderich
Tory
1827-8
Duke of Wellington
Tory
1828-30
Earl Grey
Whig
1830-4
Viscount Melbourne
Whig
1834
Duke of Wellington
Tory
1834
Sir Robert Peel
Conservative
1834-5
Viscount Melbourne
Whig
1835-41
Sir Robert Peel
Conservative
1841-6
Lord John Russell
Whig
1846-52
Earl of Derby
Conservative
1852
Earl of Aberdeen
Coalition
1852-5
Viscount Palmerston
Liberal
1855-8
Earl of Derby
Conservative
1858-9
Viscount Palmerston
Liberal
1859-65
Earl Russell
Liberal
1865-6
Earl of Derby
Conservative
1866-8
Benjamin Disraeli
Conservative
1868
William Ewart Gladstone
Liberal
1868-74
Benjamin Disraeli
Conservative
1874-80
William Ewart Gladstone
Liberal
1880-5
Marquis of Salisbury
Conservative
1885-6
William Ewart Gladstone
Liberal
1886
Marquis of Salisbury
Conservative
1886-1892
William Ewart Gladstone
Liberal
1892-4
Earl of Rosebery
Liberal
1894-5
Marquis of Salisbury
Conservative
1895-1902
Arthur James Balfour
Conservative
1902-5
Sir Henry Campbell-Bannerman
Liberal
1905-8
Herbert Henry Asquith
Liberal
1908-16
David Lloyd-George
Coalition
1916-22
Andrew Bonar Law
Conservative
1922-3
Stanley Baldwin
Conservative
1923-4
James Ramsay MacDonald
Labour
1924
Stanley Baldwin
Conservative
1924-9
James Ramsay MacDonald
Labour
1929-31
James Ramsay MacDonald
Coalition
1931-5
Stanley Baldwin
Conservative
1935-7
Neville Chamberlain
Conservative
1937-40
Winston Spencer Churchill
Coalition
1940-5
Clement Richard Attlee
Labour
1945-51
Winston Spencer Churchill
Conservative
1951-5
Sir Anthony Eden
Conservative
1955-7
Harold Macmillan
Conservative
1957-63
Sir Alec Douglas-Home
Conservative
1963-4
Harold Wilson
Labour
1964-70
Edward Heath
Conservative
1970-4
Harold Wilson
Labour
1974-6
James Callaghan
Labour
1976-9
Margaret Thatcher
Conservative
1979-90
John Major
Conservative
1990-97
Anthony Charles Lynton Blair
Labour
1997-