The Battle of Clontarf took place in 1014 near Dublin, Ireland between the forces of Brian Boru, High King of Ireland, and the forces of Máel Mórda, king of Leinster, and the Vikings of Dublin and the Kingdom of Dublin. Brian Boru's forces achieved victory over the Vikings and their allies, though Brian himself was killed in the battle. The battle marked the end of Viking power in Dublin and their dominance in Ireland.