St Leger St Leger, 1st Viscount Doneraile

St Leger St Leger, 1st Viscount Doneraile (died 15 May 1787) was an Anglo-Irish politician and peer.

St Leger was the son of Richard Aldworth and Hon. Elizabeth St. Leger. Through his mother, he was the grandson of Arthur St Leger, 1st Viscount Doneraile. He was given the name of St. Leger Aldworth at birth, but legally changed his surname to St Leger on 9 May 1767 when he succeeded to the Doneraile estates upon the death of his uncle. Like several other members of his family, he served in the Irish House of Commons as the Member of Parliament for Doneraile, sitting between 1749 and 1776. On 2 July 1776, St Leger was created Baron Doneraile in the Peerage of Ireland. He was created Viscount Doneraile, of Doneraile in County Cork, on 5 January 1785, the title previously held by his maternal relations.

He married Mary Barry, the daughter of Redmond Barry, and together they had six children.

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