Niall mac Eochada
His father, Eochada mac Ardgair, died in 1004. His early military ventures were against members of his own sept, Dál Fiatach. He defeated a cousin in 1012 at the ‘battle of the Summits’ and in 1020 defeated and blinded Flaithbertach Ua Eochada.
Niall's son Eochaid (died 1062) was considered co-king of Ulaid with his father. Eochaid's son Donn Sléibe Ua hEochada (died 1091) was also a king of Ulaid, as were many of his descendants.
- Benjamin T. Hudson, ‘Niall mac Eochada (d. 1063)’, Oxford Dictionary of National Biography, Oxford University Press, 2004 accessed 18 April 2008
- Heald, Henrietta (1992). Chronicle of Britain. Jacques Legrand. p. 172. ISBN 0-19-211695-9.
- Dáibhí Ó Cróinín, Early Medieval Ireland: 400–1200, Longman, London, 1995, p. 52. ISBN 0-582-01565-0
- Francis John Byrne, Irish Kings and High Kings, Batsford, London, 1973, p. 286, table 6. ISBN 0-7134-5882-8
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