Niall Ruadh Ó Néill
Niall Ruadh Ó Néill, whose nickname means the Red, was a son of Áed in Macáem Tóinlesc and briefly king of Tír Eoghain in 1230. By Nuala, daughter of High King Ruaidrí Ua Conchobair, he fathered Brian Chatha an Dúna, later high king of Ireland.