Aedan (or Aiden) (Scottish Gaelic: Áedán mac Gabráin) was king of Dál Riata from about 574 to 606/608 and was allegedly over 70 at his death. He was the son of Gabhran, king of Dál Riata, and became king after the death of his kinsman, Conall, when he was crowned at Iona by Saint Columba. He refused to allow his kingdom to remain dependent on Irish Dál Riata, but coming into collision with his southern neighbours he led a large force against Æthelfrith of Northumbria, and was defeated at the battle of Degsastan, perhaps in Liddesdale.