Charles I , monarch of the Kingdom of Ireland
27 March 1625 until 30 January 1649.
Letters Patent for this reign
| Kingdom | Reign | Issued on | Peerage types | Peerages | Issued to |
|---|---|---|---|---|---|
| Kingdom of Ireland | Charles I | Mon 28th Jul 1642 | Peerage of Ireland | Alington | ALINGTON William |
| Kingdom of Ireland | Charles I | Thu 26th Jan 1645 | Promotion in the peerage of Ireland | Antrim | MACDONNELL Randal |
| Kingdom of Ireland | Charles I | Sat 15th Apr 1645 | Promotion in the peerage of Ireland | Ardglass | CROMWELL Thomas |
| Kingdom of Ireland | Charles I | Tue 1st Aug 1628 | Hereditary peerage subsidiary to another created by the same letters patent, Peerage of Ireland | Ballymote, Taaffe | TAAFFE John |
| Kingdom of Ireland | Charles I | Sun 27th Jun 1627 | Peerage of Ireland, Hereditary peerage subsidiary to another created by the same letters patent | Baltinglass, Bantry | ROPER Thomas |
| Kingdom of Ireland | Charles I | Mon 28th Feb 1628 | Hereditary peerage subsidiary to another created by the same letters patent, Peerage of Ireland | Bandon Bridge, Boyle | BOYLE Lewis |
| Kingdom of Ireland | Charles I | Tue 18th Jul 1645 | Hereditary peerage subsidiary to another created by the same letters patent, Peerage of Ireland | Bard, Bellomont | BARD Henry |
| Kingdom of Ireland | Charles I | Fri 29th Jun 1646 | Peerage of Ireland, Hereditary peerage subsidiary to another created by the same letters patent | Barnewall, Turvey | BARNEWALL Nicholas |
| Kingdom of Ireland | Charles I | Thu 8th May 1625 | Hereditary peerage subsidiary to another created by the same letters patent, Peerage of Ireland | Barretts Country, Kinsale | SARSFIELD Dominick |
| Kingdom of Ireland | Charles I | Mon 28th Feb 1628 | Promotion in the peerage of Ireland | Barrymore | BARRY David |
| Kingdom of Ireland | Charles I | Wed 15th Nov 1628 | Hereditary peerage subsidiary to another created by the same letters patent, Peerage of Ireland | Blarney, Muskerry | MACCARTHY Charles |
| Kingdom of Ireland | Charles I | Fri 20th Apr 1629 | Peerage of Ireland | Bourke | BOURKE John |
| Kingdom of Ireland | Charles I | Mon 28th Feb 1628 | Peerage of Ireland | Broghill | BOYLE Roger |
| Kingdom of Ireland | Charles I | Thu 7th Sep 1645 | Hereditary peerage subsidiary to another created by the same letters patent, Peerage of Ireland | Brouncker, Brouncker | BROUNCKER William |
| Kingdom of Ireland | Charles I | Wed 6th Jan 1644 | Peerage of Ireland | Bulkeley | BULKELEY Thomas |
| Kingdom of Ireland | Charles I | Sat 5th Aug 1628 | Promotion in the peerage of Ireland | Carbery | VAUGHAN John |
| Kingdom of Ireland | Charles I | Tue 21st Mar 1628 | Peerage of Ireland | Carlingford | SWIFT Barnham |