Background
He was the eldest son of Donal MacCarthy Reagh, 9th Prince of Carbery (r 1505–1531) by his second wife Lady Eleanor, daughter of Gerald Fitzgerald, 8th Earl of Kildare.
He was the eldest son of Donal MacCarthy Reagh, 9th Prince of Carbery (r 1505–1531) by his second wife Lady Eleanor, daughter of Gerald Fitzgerald, 8th Earl of Kildare.
He belonged to the MacCarthy Reagh dynasty. Of other exploits little is now known, but Cormac na Haoine did command the forces of his father in the celebrated victory at Mourne Abbey, also known as the Battle of Cluhar and Moor, in 1521, against the Earl of Desmond, James Fitzgerald, 10th Earl of Desmond, who was wasting much of Munster. The Earl of Desmond was slain in the battle.