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 TitlesEdit

Peerage of IrelandEdit

Peerage of the United KingdomEdit

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