Holders[]
| From | Until | Name | Lifespan | |
|---|---|---|---|---|
| 1. | 29 December 1800 | 10 February 1808 | The Most Hon. Murrough O'Brien, 1st Marquess of Thomond, K.P., P.C. | 1726-1808 |
| 2. | 10 February 1808 | 21 August 1846 | The Most Hon. William O'Brien, 2nd Marquess of Thomond, K.P., P.C. | 1765-1846 |
| 3. | 21 August 1846 | 3 July 1855 | Admiral The Most Hon. James O'Brien, 3rd Marquess of Thomond, G.C.H. | 1768-1855 |
Other Titles[]
Peerage of Ireland[]
- Earl of Inchiquin (1654), 1800-1855
- Baron Inchiquin (1543), 1800-1855
- Baron O'Brien (1654), 1800-1855
Peerage of the United Kingdom[]
- Baron Thomond (1801), 1801-1808
- Baron Tadcaster (1826), 1826-1846