He was killed at the Battle of Verneuil in 1424. His son Lord Wigtown, absent in Scotland, was believed in France to have died without issue, so the title was presumed extinct.
At the Battle of Verneuil in 1424, he met his demise. His son, Lord Wigtown, who was away in Scotland, was believed by French authorities to have died childless, leading to the assumption that his title became extinct.