Ermengarde of Anjou, also known as Ermengarde of Brittany, was a member of the comital House of Anjou and by her two marriages was successively Duchess of Aquitaine and Brittany. She was also a patron of Fontevraud Abbey. Wikipedia
Born: Angers, France
Died: June 1, 1146, Jerusalem
Parents: Fulk IV, Count of Anjou and Hildegarde of Beaugency
Spouse: Alan IV, Duke of Brittany (m. 1093–1112) and William IX, Duke of Aquitaine (m. 1088)
Great-grandparents: Fulk III, Count of Anjou, Béatrice de Mâcon, and Hildegarde of Sundgau
Great grandchildren: Conan IV, Duke of Brittany, Constance of Penthièvre, and Mathilde de Mayenne
Grandchildren: Bertha, Duchess of Brittany, Hoel III, Count of Nantes, and Constance de Bretagne