Banshee

Among the legends that are told about Brian Boru (941-1014), the Great King of Ireland, the appearance of Aibhill stands out, who would become one of the banshees, a beautiful lady who shortly before the Battle of Clontarf (which would fight against the Viking hordes), announced that he would die. However, Boru fought bravely and the invaders were exterminated. Relieved that the dire prediction had not come to pass, he retired to his camp to pray. Shortly after he would be killed while he was praying.