| Deiliaid a'u cyfnodau | Keir Starmer (5 Gorffennaf 2024),[1] Rishi Sunak (25 Hydref 2022 – 5 Gorffennaf 2024),[2] Liz Truss (6 Medi 2022 – 25 Hydref 2022),[3] Boris Johnson (24 Gorffennaf 2019 – 5 Medi 2022),[4] Theresa May (13 Gorffennaf 2016 – 24 Gorffennaf 2019),[4] David Cameron (11 Mai 2010 – 13 Gorffennaf 2016),[4] Gordon Brown (27 Mehefin 2007 – 11 Mai 2010),[4] Tony Blair (2 Mai 1997 – 27 Mehefin 2007),[4] John Major (28 Tachwedd 1990 – 2 Mai 1997),[4] Margaret Thatcher (4 Mai 1979 – 28 Tachwedd 1990),[4] James Callaghan (5 Ebrill 1976 – 4 Mai 1979),[4] Harold Wilson (4 Mawrth 1974 – 5 Ebrill 1976),[4] Edward Heath (19 Mehefin 1970 – 4 Mawrth 1974),[4] Harold Wilson (16 Hydref 1964 – 19 Mehefin 1970),[4] Alec Douglas-Home (19 Hydref 1963 – 16 Hydref 1964),[4] Harold Macmillan (10 Ionawr 1957 – 18 Hydref 1963),[4] Anthony Eden (6 Ebrill 1955 – 9 Ionawr 1957),[4] Winston Churchill (26 Hydref 1951 – 5 Ebrill 1955),[4] Clement Attlee (26 Gorffennaf 1945 – 26 Hydref 1951),[4] Winston Churchill (10 Mai 1940 – 26 Gorffennaf 1945),[4] Neville Chamberlain (28 Mai 1937 – 10 Mai 1940),[4] Stanley Baldwin (7 Mehefin 1935 – 28 Mai 1937),[4] James Ramsay MacDonald (5 Mehefin 1929 – 7 Mehefin 1935),[4] Stanley Baldwin (4 Tachwedd 1924 – 4 Mehefin 1929),[4] James Ramsay MacDonald (22 Ionawr 1924 – 4 Tachwedd 1924),[4] Stanley Baldwin (22 Mai 1923 – 22 Ionawr 1924),[4] Andrew Bonar Law (23 Hydref 1922 – 20 Mai 1923),[4] David Lloyd George (6 Rhagfyr 1916 – 19 Hydref 1922),[4] Herbert Henry Asquith (8 Ebrill 1908 – 5 Rhagfyr 1916),[4] Henry Campbell-Bannerman (5 Rhagfyr 1905 – 3 Ebrill 1908),[4] Arthur Balfour (12 Gorffennaf 1902 – 4 Rhagfyr 1905),[4] Robert Gascoyne-Cecil, 3ydd Ardalydd Caersallog (25 Mehefin 1895 – 11 Gorffennaf 1902),[4] Archibald Primrose (5 Mawrth 1894 – 22 Mehefin 1895),[4] William Ewart Gladstone (15 Awst 1892 – 2 Mawrth 1894),[4] Robert Gascoyne-Cecil, 3ydd Ardalydd Caersallog (11 Awst 1892 – 11 Awst 1892), William Ewart Gladstone (1 Chwefror 1886 – 20 Gorffennaf 1886),[4] Robert Gascoyne-Cecil, 3ydd Ardalydd Caersallog (23 Mehefin 1885 – 28 Ionawr 1886),[4] William Ewart Gladstone (23 Ebrill 1880 – 9 Mehefin 1885),[4] Benjamin Disraeli (20 Chwefror 1874 – 21 Ebrill 1880),[4] William Ewart Gladstone (3 Rhagfyr 1868 – 17 Chwefror 1874),[4] Benjamin Disraeli (27 Chwefror 1868 – 1 Rhagfyr 1868),[4] Edward Smith-Stanley, 14eg Iarll Derby (28 Mehefin 1866 – 25 Chwefror 1868),[4] John Russell, Iarll Russell 1af (29 Hydref 1865 – 26 Mehefin 1866),[4] Henry Temple, 3ydd Is-iarll Palmerston (12 Mehefin 1859 – 8 Hydref 1865),[4] Edward Smith-Stanley, 14eg Iarll Derby (20 Chwefror 1858 – 11 Mehefin 1859),[4] Henry Temple, 3ydd Is-iarll Palmerston (6 Chwefror 1855 – 9 Chwefror 1858),[4] George Hamilton-Gordon, 4ydd Iarll Aberdeen (19 Rhagfyr 1852 – 30 Ionawr 1855),[4] Edward Smith-Stanley, 14eg Iarll Derby (23 Chwefror 1852 – 17 Rhagfyr 1852),[4] John Russell, Iarll Russell 1af (30 Mehefin 1846 – 21 Chwefror 1852),[4] Robert Peel (30 Awst 1841 – 29 Mehefin 1846),[4] William Lamb, Ail is-iarll Melbourne (18 Ebrill 1835 – 30 Awst 1841),[4] Robert Peel (10 Rhagfyr 1834 – 8 Ebrill 1835),[4] Arthur Wellesley, Dug 1af Wellington (17 Tachwedd 1834 – 9 Rhagfyr 1834),[4] William Lamb, Ail is-iarll Melbourne (16 Gorffennaf 1834 – 14 Tachwedd 1834),[4] Charles Grey, 2ail Iarll Grey (22 Tachwedd 1830 – 9 Gorffennaf 1834),[4] Arthur Wellesley, Dug 1af Wellington (22 Ionawr 1828 – 16 Tachwedd 1830),[4] Frederick John Robinson, Is-iarll Goderich 1af (31 Awst 1827 – 8 Ionawr 1828), George Canning (12 Ebrill 1827 – 8 Awst 1827),[4] Robert Jenkinson (8 Mehefin 1812 – 9 Ebrill 1827),[4] Spencer Perceval (4 Hydref 1809 – 11 Mai 1812),[4] William Cavendish-Bentinck (31 Mawrth 1807 – 4 Hydref 1809),[4] William Wyndham Grenville (11 Chwefror 1806 – 25 Mawrth 1807),[4] William Pitt (10 Mai 1804 – 23 Ionawr 1806),[4] Henry Addington (17 Mawrth 1801 – 10 Mai 1804),[4] William Pitt (19 Rhagfyr 1783 – 14 Mawrth 1801),[4] William Cavendish-Bentinck (2 Ebrill 1783 – 18 Rhagfyr 1783),[4] William Petty, 2ail Iarll Shelburne (4 Gorffennaf 1782 – 26 Mawrth 1783),[4] Charles Watson-Wentworth (27 Mawrth 1782 – 1 Gorffennaf 1782),[4] Frederick North (28 Ionawr 1770 – 27 Mawrth 1782),[4] Augustus Fitzroy (14 Hydref 1768 – 28 Ionawr 1770),[4] William Pitt, Iarll Chatham 1af (30 Gorffennaf 1766 – 14 Hydref 1768),[4] Charles Watson-Wentworth (13 Gorffennaf 1765 – 30 Gorffennaf 1766),[4] George Grenville (16 Ebrill 1763 – 10 Gorffennaf 1765),[4] John Stuart, 3ydd Ardalydd Bute (26 Mai 1762 – 8 Ebrill 1763),[4] Thomas Pelham-Holles (29 Mehefin 1757 – 26 Mai 1762),[4] William Cavendish (16 Tachwedd 1756 – 29 Mehefin 1757),[4] Thomas Pelham-Holles (16 Mawrth 1754 – 11 Tachwedd 1756),[4] Henry Pelham (27 Awst 1743 (Julian) – 6 Mawrth 1754),[4] Robert Walpole (3 Ebrill 1721 (Julian) – 11 Chwefror 1742 (Julian))[4] |
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