Clontarf, Battle of

Comprehensive Irish victory over a Norse invasion force on Good Friday, 23 April, 1014. Although the Irish won a magnificent victory which completely lifted the Norse threat to Ireland, the Irish king Brian Bóruma and his son were both killed in the battle; Brian, being too old to fight, was slain in his tent.

Details of the battle are scant, but the Norsemen were completely defeated by Brian, with a loss said to be 6,000 dead.