Aidan of Dalriada

Aidan (d. 606), king of the Scottish kingdom of Dalriada, was the son of Gabran, king of Dalriada, and became king after the death of his kinsman King Conall, when he was crowned at Iona by Saint Columba. He refused to allow his kingdom to remain in dependence on the Irish Dairiada, but coming into collision with his southern neighbours he led a large force against AEthelfrith, king of the Northumbrians, and was defeatedat a place called Daegsanstane, probably in Liddesdale.

See History of Scotland