John Comyn, Earl of Buchan

John Comyn, 3rd Earl Buchan
Coat of arms as Earl of Buchan
Personal details
BornBuchan, Aberdeenshire
Died1308
England
SpouseIsabella MacDuff
Parent(s)Alexander Comyn, Earl of Buchan
Elizabeth de Quincy

John Comyn, 3rd Earl of Buchan (circa 1260 – 1308) was a chief opponent of Robert the Bruce in the civil war that paralleled the War of Scottish Independence. He should not be confused with the better known John III Comyn, Lord of Badenoch, who was his cousin, and who was killed by Bruce in Dumfries in March 1306. Confusion between the two men has affected the study of this period of history.

Buchan was the representative of a family that had long dominated the politics of Scotland. He was defeated by Bruce at the Battle of Barra and was subsequently forced to flee to England. Bruce's Harrying of Buchan destroyed support for the Comyns in northern Scotland. This defeat, together with Comyn's death that year, produced a significant and lasting shift in the balance of power in Scotland.