Catherine (1296–1368, Normandy), married John II of Ponthieu, Count of Aumale
He served under his father at the Battle of Furnes, where he was wounded. He never recovered, and died of the effects over a year later. He was buried in the now-demolished church of the Couvent des Jacobins in Paris. His premature death led to a legal battle later, when Artois was left to his sister Mahaut rather than his son Robert.