Margaret of Bavaria

Margaret of Bavaria was Duchess of Burgundy by marriage to John the Fearless. She was the regent of the Burgundian Low Countries during the absence of her spouse in 1404–1419 and the regent in French Burgundy during the absence of her son in 1419–1423. She became most known for her successful defense of the Duchy of Burgundy against Count John IV of Armagnac in 1419.