Dictionary of Battles / From the Earliest Date to the Present Time

by Thomas Benfield Harbottle

Clontarf (Norse Invasion of Ireland).

Fought April 24, 1014, when the Scandinavian invaders were totally routed by the Irish of Munster, Connaught, Ulster and Meath, under Brian Boru. The Norsemen are said to have lost 6,000 men. Brian Boru and his son fell in the battle.