Ermengarde-Blanche of Anjou
Ermengarde-Blanche of Anjou (–1076), was a French noblewoman who was first Countess of Chateau-Landon and secondly Duchess of Burgundy. She is also called Hermangarde in some sources. Ermengarde-Blanch was the heiress of the countship of Anjou and is an ancestress of the House of Plantagenet.