James I , monarch of the Kingdom of Ireland
24 March 1603 until 27 March 1625.
Letters Patent for this reign
| Kingdom | Reign | Issued on | Peerage types | Peerages | Issued to |
|---|---|---|---|---|---|
| Kingdom of Ireland | James I | Sat 12th Dec 1620 | Promotion in the peerage of Ireland | Antrim | MACDONNELL Randal |
| Kingdom of Ireland | James I | Tue 6th Sep 1616 | Hereditary peerage subsidiary to another created by the same letters patent, Peerage of Ireland | Audley, Castlehaven | TUCHET George |
| Kingdom of Ireland | James I | Tue 29th Jun 1621 | Peerage of Ireland | Aungier | AUNGIER Francis |
| Kingdom of Ireland | James I | Fri 8th Nov 1619 | Peerage of Ireland | Balfour | BALFOUR James |
| Kingdom of Ireland | James I | Sun 16th Feb 1625 | Peerage of Ireland | Baltimore | CALVERT George |
| Kingdom of Ireland | James I | Fri 20th May 1622 | Peerage of Ireland | Beaumont | BEAUMONT Thomas |
| Kingdom of Ireland | James I | Thu 29th Jul 1621 | Peerage of Ireland | Blayney | BLAYNEY Edward |
| Kingdom of Ireland | James I | Sat 17th Feb 1618 | Peerage of Ireland | Bourke | BOURKE Theobald |
| Kingdom of Ireland | James I | Tue 6th Sep 1616 | Peerage of Ireland | Boyle | BOYLE Richard |
| Kingdom of Ireland | James I | Tue 19th Jul 1616 | Peerage of Ireland | Brabazon | BRABAZON Edward |
| Kingdom of Ireland | James I | Sat 11th May 1624 | Peerage of Ireland | Brereton | BRERETON William |
| Kingdom of Ireland | James I | Mon 4th Aug 1603 | Peerage of Ireland | Butler | BUTLER Theobald |
| Kingdom of Ireland | James I | Mon 7th Nov 1622 | Hereditary peerage subsidiary to another created by the same letters patent, Peerage of Ireland, Hereditary peerage subsidiary to another created by the same letters patent | Callan, Desmond, Feilding | FEILDING George |
| Kingdom of Ireland | James I | Thu 7th Nov 1619 | Peerage of Ireland | Castle Stewart | STEWART Andrew |
| Kingdom of Ireland | James I | Tue 22nd Dec 1620 | Peerage of Ireland | Caulfield | CAULFEILD Toby |
| Kingdom of Ireland | James I | Sat 23rd Feb 1613 | Peerage of Ireland | Chichester | CHICHESTER Arthur |
| Kingdom of Ireland | James I | Wed 4th May 1622 | Peerage of Ireland | Claneboye | HAMILTON James |
| Kingdom of Ireland | James I | Fri 16th Oct 1620 | Promotion in the peerage of Ireland, Hereditary peerage subsidiary to another created by the same letters patent | Cork, Dungarvan | BOYLE Richard |