Career
In 1306, he was captured by English forces at Kildrummy Castle, where he and his garrison held off Edward"s forces who had been seeking Robert the Bruce"s wife Elizabeth, daughter Marjorie, sisters Mary and Christina, and Isabella MacDuff, Countess of Buchan. After his capture he was executed for high treason by being hanged, drawn, and quartered in September 1306 at Berwick-upon-Tweed.