Mountcastle (Barony)
A peerage of the Kingdom of Ireland.
Letters patent issued on Fri 2nd Dec 1701
To James Hamilton as Hereditary peerage subsidiary to another created by the same letters patent.
Holders
| Number | Surname | Forenames | Held from | Held to |
|---|---|---|---|---|
| 1st | Hamilton | James | Fri 2nd Dec 1701 | Sun 28th Nov 1734 |
| 3rd | Hamilton | James | Fri 23rd Mar 1736 | Fri 9th Oct 1789 |
| 4th | Hamilton | John James | Fri 9th Oct 1789 | Tue 27th Jan 1818 |
| 5th | Hamilton | James | Tue 27th Jan 1818 | Sat 31st Oct 1885 |
| 9th | Hamilton | James | Mon 4th Jun 1979 | - |