Margaret II, Countess of Hainaut Countess suo jure of Holland, Zeeland and Hainaut (1311-1356) (1311–1356) Parents Joan of Valois, Countess of Hainaut William I, Count of Hainaut Children Louis II, Elector of Brandenburg Beatrice of Bavaria William I, Duke of Bavaria Elisabeth of Bavaria Margaret of Bavaria, Duchess of Slavonia Otto V, Duke of Bavaria Albert I, Duke of Bavaria Agnes of Bavaria Siblings Philippa of Hainault Joanna of Hainaut William II of Hainaut Catherine d'Avesnes Isabella d'Avesnes Jan Aelman Partners Louis IV of Bavaria
