Career
He is one of the first recorded holders of the office of Attorney General for Ireland and was subsequently Chief Baron of the Irish Exchequer and Chief Justice of the Irish Common Pleas. He was born at Killeek, County Dublin, son of John Mitchell. He is recorded as living in England in 1344.
In 1372-1373 he was Attorney General for Ireland, and sat in the Irish House of Commons in the Parliament of 1375.
He was briefly Chief Baron in 1376-1377, and was then transferred to the Court of Common Pleas (Ireland) as its Chief Justice. He died in 1384.