Aedan mac Gabhran (c.532–April 17, 608) was a king of the DalriadaScots. He reigned from about 574 to 606 or 608. He was the son of Gabhran, 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 dependent on the Irish Dairiada, but coming into collision with his southern neighbours he led a large force against Ęthelfrith, king of the Northumbrians, and was defeated at a place called Daegsanstane, probably in Liddesdale. He was succeeded by his son, Eochaid Buide. Some consider him a possible historical basis for King Arthur.
Dalriada or Dál Riata (as it was called in Ireland) was the kingdom of the Scotti, who migrated from County Antrim in Ulster to Argyll and eventually gave their name to Scotland.
Aidan mac Gabhráin, who reigned from 574 to 608 as king of Dál Riata, built a strong navy and waged aggressive war, raiding as far as the Isle of Man and the Orkney Islands.
Dunadd, in Argyll, was probably the seat of the kings of Dalriada.
Scottish Dalriada soon extended its cultural as well as its military sway east and south, though one of its greatest kings, Aidan, was, in 603, defeated by the Angles as Degsastan near the later Scottish border...
The origin of the kingdom of Dalriada, itself the embryo of the kingdom of Scotland, lay in the settlements of comparatively small groups of Scots who had crosses from north-eastern Ireland towards the middle of the fifth century.
Ancestral File Ver 4.10 8HRV-08 Born Abt ?381 Died Abt 608 (?227 yo), EBMicro Aidan King of DALRIADA in Scotland Died 608, RB&EE Aedan King of the Scots of Dalriada.