George III , monarch of the United Kingdom
1 January 1801 until 29 January 1820.
Letters Patent for this reign
| Kingdom | Reign | Issued on | Peerage types | Peerages | Issued to |
|---|---|---|---|---|---|
| United Kingdom | George III | Fri 27th Nov 1801 | Hereditary peerage, Hereditary peerage, Hereditary peerage | Cambridge, Culloden, Tipperary | Adolphus Frederick |
| United Kingdom | George III | Fri 11th Aug 1815 | Hereditary peerage | Churchill | SPENCER Francis Almeric |
| Kingdom of Ireland | George III | Thu 20th Jan 1803 | Promotion in the peerage of Ireland | Clancarty | TRENCH William Power Keating |
| United Kingdom | George III | Mon 14th May 1804 | Promotion, Promotion, Promotion, Promotion | Clive, Herbert, Powis, Powis | CLIVE Edward |
| United Kingdom | George III | Tue 3rd Jun 1817 | Hereditary peerage | Colchester | ABBOT Charles |
| United Kingdom | George III | Wed 20th Nov 1805 | Hereditary peerage | Collingwood | COLLINGWOOD Cuthbert |
| United Kingdom | George III | Tue 17th May 1814 | Hereditary peerage | Combermere | COTTON Stapleton |
| United Kingdom | George III | Mon 7th Sep 1812 | Promotion, Promotion, Promotion | Compton, Northampton, Wilmington | COMPTON Charles |
| Kingdom of Ireland | George III | Mon 15th Jan 1816 | Promotion in the peerage of Ireland, Hereditary peerage subsidiary to another created by the same letters patent, Hereditary peerage subsidiary to another created by the same letters patent | Conyngham, Mount Charles, Slane | CONYNGHAM Henry |
| United Kingdom | George III | Fri 19th Jun 1801 | Promotion, Promotion | Cranley, Onslow | ONSLOW George |
| United Kingdom | George III | Thu 18th Jun 1801 | Promotion, Promotion | Craven, Uffington | CRAVEN William |
| United Kingdom | George III | Tue 25th Feb 1806 | Hereditary peerage | Crewe | CREWE John |
| United Kingdom | George III | Sat 27th Feb 1802 | Promotion | Curzon | CURZON Assheton |
| United Kingdom | George III | Fri 11th Aug 1815 | Hereditary peerage (already peer of Scotland) | Dalhousie | RAMSAY George |
| Kingdom of Ireland | George III | Tue 22nd Dec 1812 | Peerage of Ireland | Decies | BERESFORD William |
| United Kingdom | George III | Fri 25th Oct 1816 | Promotion | de Grey | HUME-CAMPBELL Amabell |
| United Kingdom | George III | Mon 4th Sep 1809 | Hereditary peerage, Hereditary peerage | Douro, Wellington | WELLESLEY Arthur |
| United Kingdom | George III | Wed 11th May 1814 | Promotion, Promotion | Douro, Wellington | WELLESLEY Arthur |
| United Kingdom | George III | Fri 24th Dec 1802 | Hereditary peerage, Hereditary peerage | Dunira, Melville | DUNDAS Henry |
| Kingdom of Ireland | George III | Tue 6th Jan 1801 | Promotion in the peerage of Ireland | Dunlo | TRENCH William Power Keating |