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.
In 1424, he died during the Battle of Verneuil. His son, Lord Wigtown, who was in Scotland at the time, was believed by French authorities to have died without heirs, which led to the assumption that his title became extinct.