Eustach *Hainault

Eustach was born in 1177.  Eustach's father was Baudouin Hainault VIII and his mother was Comtess de Flandres Marguerite *d'Alsace.  His paternal grandparents are Baudouin Hainault IV and Alix de Namur; his maternal grandfather was Comte d'Alsace et Flandres Thierry *d'Alsace III and his maternal grandmother is Sibylla d'Anjou. He had three brothers and three sisters, named Baudouin, Phillip, Henri, Isabella, Yolande and Sybil.  He is the second youngest of the seven children.