"Earldom of Orkney" . . "Battle of Clontarf" . "Kingdom of Leinster" . "battle of Clontarf" . "Forces of theHigh King of Ireland" . . "Irish victory" . . . . "victory over the Danes" . . "* Death ofBrian Boru" . . . . . "1014-04-23" . . . . . "Vikings" . . "5,000 men" . . "Clontarf" . . "battle of Cluantarbh" . . . . "Kingdom of Dublin" . . . . "~7,000 men" . . "4,000 dead" . . . "Battle of Clontarf" . "* Viking power in Ireland broken" . . . . "Kingdom of the Isles" . "battle of" . . . . . . . .