2nd marquess of Rockingham (1st time) Whig 1765–66
1st earl of Chatham 1766–68
3rd duke of Grafton 1768–70
Lord North (from 1790, 2nd earl of Guilford) 1770–82
2nd marquess of Rockingham (2nd time) Whig 1782
2nd earl of Shelburne (from 1784, 1st marquess of Lansdowne) 1782–83
William Henry Cavendish-Bentinck,
3rd duke of Portland (1st time) Whig 1783
William Pitt, the Younger
(1st time) Tory 1783–1801
(from 1805, 1st Viscount Sidmouth) Tory 1801–04
William Pitt, the Younger
(2nd time) Tory 1804–06
1st Baron Grenville 1806–07
William Henry Cavendish-Bentinck,
3rd duke of Portland (2nd time) Whig 1807–09
Spencer Perceval
Tory
1809–12
2nd earl of Liverpool Tory 1812–27
George Canning
Tory
1827
1st Viscount Goderich (from 1833, 1st earl of Ripon) Tory 1827–28
1st duke of Wellington (1st time) Tory 1828–30
2nd Earl Grey Whig 1830–34
2nd Viscount Melbourne (1st time) Whig 1834
1st duke of Wellington (2nd time) Tory 1834
2nd Baronet (1st time) Tory 1834–35
2nd Viscount Melbourne (2nd time) Whig 1835–41
2nd Baronet (2nd time) Conservative 1841–46
Lord Russell (from 1861, 1st Earl Russell) (1st time) Whig-Liberal 1846–52
14th earl of Derby (1st time) Conservative 1852
4th earl of Aberdeen 1852–55
3rd Viscount Palmerston (1st time) Liberal 1855–58
14th earl of Derby (2nd time) Conservative 1858–59
3rd Viscount Palmerston (2nd time) Liberal 1859–65
1st Earl Russell (2nd time) Liberal 1865–66
14th earl of Derby (3rd time) Conservative 1866–68
(1st time) Conservative 1868
(1st time) Liberal 1868–74
(from 1876, earl of Beaconsfield) (2nd time) Conservative 1874–80
(2nd time) Liberal 1880–85
3rd marquess of Salisbury (1st time) Conservative 1885–86
(3rd time) Liberal 1886
3rd marquess of Salisbury (2nd time) Conservative 1886–92
(4th time) Liberal 1892–94
5th earl of Rosebery Liberal 1894–95