Vem gifte sig med Marie of Bar?

William II, Marquis of Namur (22 January 1355 – 10 January 1418) inherited the Marquisate of Namur from his father William I in 1391 and held it until his own death. His mother was Catherine of Savoy († 1388), daughter of Louis II of Savoy, baron of Vaud, and Isabella of Châlon.