E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Sir John Comyn of Badenoch, son of Marjory, sister of King John Balliol; so called from his ruddy complexion and red hair, to distinguish him from his kinsman Black Comyn, whose complexion was swarthy and hair black. He was stabbed by Sir Robert Bruce in the church of the Minorites at Dumfries, and afterwards dispatched by Lindesay and Kirkpatrick.