Earl Mount Cashell

It was created in 1781 for Stephen Moore, 2nd Viscount Mount Cashell, who had previously represented Lismore in the Irish House of Commons.

He was the eldest surviving son of Stephen Moore, member of the Irish Parliament for County Tipperary, who had been created Baron Kilworth, of Moore Park in the County of Cork, in 1764 and Viscount Mount Cashell, of the City of Cashell, in 1766.

He sat in the House of Lords as an elected Irish representative peer from 1815 to 1822.

Richard Moore (1725–1761), eldest son of the first Viscount, represented Clonmel in the Irish Parliament.

William Moore (died 1810), younger son of the first Viscount, represented Clogher, Clonmel and St Johnstown in the Irish Parliament.