Robert the Bruce killed Comyn here on the altar of the church.
John III Comyn, Lord of Badenoch and Lord of Lochaber or John "the Red", also known simply as the Red Comyn (died 10 February 1306) was a Scottish nobleman who was an important figure in the Wars of Scottish Independence, and was Guardian of Scotland during the Second Interregnum 1296–1306. He is best known for having been stabbed to death by King Robert I of Scotland in Dumfries.