Stephen Moore, 1st Earl Mount Cashell

Stephen Moore, 1st Earl Mount Cashell PC (25 July 1730 – 14 May 1790), styled The Honourable Stephen Moore between 1764 and 1766 and known as The Viscount Mount Cashell between 1766 and 1781, was an Irish landowner and politician.
Moore was the eldest surviving son of Stephen Moore, 1st Viscount Mount Cashell, by Alicia Colville, daughter of Hugh Colville. He was returned to the Irish House of Commons for Lismore, a seat he held until 1766, when he succeeded his father in the viscountcy and entered the Irish House of Lords. In 1781 he was created Earl Mount Cashell, of Cashell in the County of Tipperary, in the Irish peerage. In 1785 he was also sworn of the Irish Privy Council.
Lord Mount Cashell married Lady Helena Rawdon, daughter of John Rawdon, 1st Earl of Moira, in 1769. They had several children. Two siblings married siblings, children of Robert King, 2nd Earl of Kingston and his wife Caroline FitzGerald:
one daughter, Lady Helena Moore, married George King, 3rd Earl of Kingston, and was the mother of antiquarian Edward King, Viscount Kingsborough,
and the son and heir, Stephen Moore, married Lady Margaret King in 1791, and was the father of Hon. Edward George Moore, a Canon of Windsor Cathedral.
Lord Mount Cashell died in May 1790, aged 59, and was succeeded in the earldom by his son Stephen.