Beatrice of Bavaria Swedish queen (1344–1359) Parents Margaret II, Countess of Hainaut Louis IV of Bavaria Children Siblings Louis V, Duke of Bavaria Agnes of Bavaria Margaret of Bavaria, Duchess of Slavonia Louis II, Elector of Brandenburg Stephen II, Duke of Bavaria Albert I, Duke of Bavaria Matilda of Bavaria, Margravine of Meissen Elisabeth of Bavaria William I, Duke of Bavaria Otto V, Duke of Bavaria Partners Eric XII of Sweden