George III , monarch of the Kingdom of Ireland
25 October 1760 until 1 January 1801.
Letters Patent for this reign
| Kingdom | Reign | Issued on | Peerage types | Peerages | Issued to |
|---|---|---|---|---|---|
| Kingdom of Ireland | George III | Sat 14th May 1763 | Hereditary peerage subsidiary to another created by the same letters patent, Promotion in the peerage of Ireland | Barrells, Catherlough | KNIGHT Robert |
| Kingdom of Ireland | George III | Wed 24th Jul 1776 | Promotion in the peerage of Ireland | Carlow | DAWSON William Henry |
| Kingdom of Ireland | George III | Mon 11th Jul 1796 | Peerage of Ireland | Carrington | SMITH Robert |
| Kingdom of Ireland | George III | Thu 20th Aug 1789 | Promotion in the peerage of Ireland | Carysfort | PROBY John Joshua |
| Kingdom of Ireland | George III | Thu 31st Jul 1800 | Peerage of Ireland | Castle Coote | COOTE Charles Henry |
| Kingdom of Ireland | George III | Wed 4th Dec 1793 | Hereditary peerage subsidiary to another created by the same letters patent, Promotion in the peerage of Ireland | Castle-Cuffe, Desart | CUFFE Otway |
| Kingdom of Ireland | George III | Thu 1st Oct 1795 | Promotion in the peerage of Ireland | Castlereagh | STEWART Robert |
| Kingdom of Ireland | George III | Wed 14th Feb 1798 | Hereditary peerage subsidiary to another created by the same letters patent, Peerage of Ireland | Castlerosse, Kenmare | BROWNE Valentine |
| Kingdom of Ireland | George III | Mon 2nd Dec 1793 | Peerage of Ireland | Castle Stewart | STEWART Andrew Thomas |
| Kingdom of Ireland | George III | Tue 30th Dec 1800 | Promotion in the peerage of Ireland | Castle Stewart | STEWART Andrew Thomas |
| Kingdom of Ireland | George III | Fri 23rd Dec 1763 | Promotion in the peerage of Ireland | Charlemont | CAULFEILD James |
| Kingdom of Ireland | George III | Thu 31st Jul 1800 | Peerage of Ireland | Clanmorris | BINGHAM John |
| Kingdom of Ireland | George III | Mon 29th Dec 1800 | Peerage of Ireland | Clanricarde | DE BURGH John Thomas |
| Kingdom of Ireland | George III | Mon 17th Aug 1789 | Promotion in the peerage of Ireland | Clanricarde | DE BURGH Henry |
| Kingdom of Ireland | George III | Mon 17th Nov 1766 | Peerage of Ireland, Hereditary peerage subsidiary to another created by the same letters patent | Clanwilliam, Gillford | MEADE John |
| Kingdom of Ireland | George III | Sat 20th Jul 1776 | Promotion in the peerage of Ireland | Clanwilliam | MEADE John |
| Kingdom of Ireland | George III | Mon 19th Jan 1767 | Peerage of Ireland, Hereditary peerage subsidiary to another created by the same letters patent | Clare, Nugent | NUGENT Robert |
| Kingdom of Ireland | George III | Fri 12th Jun 1795 | Promotion in the peerage of Ireland | Clare | FITZGIBBON John |
| Kingdom of Ireland | George III | Sun 28th Dec 1800 | Peerage of Ireland | Clarina | MASSEY Eyre |
| Kingdom of Ireland | George III | Mon 10th Feb 1777 | Promotion in the peerage of Ireland | Clermont | FORTESCUE William Henry |