She was first betrothed to John of Brabant, son of
John III, Duke of Brabant and his wife
Marie d'Évreux. The marriage did not, however, take place.
Queen Joan instead was married on 12 February 1352 to
Charles the Bad, at Chateau du Vivier, close to Fontenay-Trésigny in Brie,
Coutevroult. He was the son of
Philip III of Navarre and his wife,
Joan II of Navarre. Joan and Charles were agnatic third cousins and cognatic second cousins. Because of her age, she remained in France until 1360, when she was seventeen. Her marriage was distant first, but Charles eventually developed confidence in her: he appointed her regent when he left for warfare in France in 1369, and she ruled successfully until his return in 1372, one year before her death. Joan died in 1373, aged thirty, in
Évreux. She was buried in the Royal
Abbey of Saint Denis. ==Issue==