Owen O'Neill was King of Tyrone. He defended east Ulster in 1417, and in 1422 with English assistance attacked Connaught. During 1435 he fought the Maguires of Fermanagh, and it is said that the people fled before him carrying their possessions across the frozen surface of Lough Erne. He was captured by the English at Trim, when he turned against them. He had been inaugurated O'Neill in 1432, but in 1455 was deposed by his son.

Born:	c.1380
Died:	1456