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 | Mon 27th Nov 1815 | Promotion, Promotion | Alford, Brownlow | CUST John |
| United Kingdom | George III | Wed 29th Nov 1815 | Promotion, Promotion | Boringdon, Morley | PARKER John |
| United Kingdom | George III | Mon 7th Aug 1815 | Hereditary peerage (already peer of Scotland) | Bowes | BOWES John |
| United Kingdom | George III | Thu 30th Nov 1815 | Promotion, Promotion | Bradford, Newport | BRIDGEMAN Orlando |
| United Kingdom | George III | Thu 13th Nov 1806 | Hereditary peerage (already peer of Scotland) | Breadalbane | CAMPBELL John |
| United Kingdom | George III | Mon 7th Sep 1812 | Promotion, Promotion | Brecknock, Camden | PRATT John Jeffreys |
| United Kingdom | George III | Tue 20th Jan 1801 | Hereditary peerage (already peer of Ireland) | Butler | BUTLER Walter |
| Kingdom of Ireland | George III | Mon 15th Jan 1816 | Hereditary peerage subsidiary to another created by the same letters patent, Promotion in the peerage of Ireland | Caher, Glengall | BUTLER Richard |
| Kingdom of Ireland | George III | Thu 1st Jan 1801 | Promotion in the peerage of Ireland | Caledon | ALEXANDER James |
| United Kingdom | George III | Fri 27th Nov 1801 | Hereditary peerage, Hereditary peerage, Hereditary peerage | Cambridge, Culloden, Tipperary | Adolphus Frederick |
| United Kingdom | George III | Wed 21st Jan 1801 | Hereditary peerage (already peer of Ireland) | Carysfort | PROBY John Joshua |
| Kingdom of Ireland | George III | Mon 21st Dec 1812 | Peerage of Ireland | Castlemaine | HANDCOCK William |
| Kingdom of Ireland | George III | Fri 2nd Jan 1801 | Hereditary peerage subsidiary to another created by the same letters patent, Promotion in the peerage of Ireland | Castlerosse, Kenmare | BROWNE Valentine |
| United Kingdom | George III | Sat 16th Jul 1814 | Promotion | Cathcart | CATHCART William |
| United Kingdom | George III | Mon 9th Nov 1807 | Hereditary peerage (already peer of Scotland), Hereditary peerage (already peer of Scotland) | Cathcart, Greenock | CATHCART William |
| Kingdom of Ireland | George III | Wed 7th Jan 1801 | Promotion in the peerage of Ireland | Charleville | BURY Charles William |
| Kingdom of Ireland | George III | Wed 5th Feb 1806 | Promotion in the peerage of Ireland | Charleville | BURY Charles William |
| United Kingdom | George III | Tue 23rd Jun 1801 | Promotion | Chichester | PELHAM Thomas |
| United Kingdom | George III | Wed 22nd Nov 1815 | Promotion, Promotion | Cholmondeley, Rocksavage | CHOLMONDELEY George James |