Marie married Cte Baudouin IX (VI) DE HAINAUT, son of Baudouin (Baldwin) (V) I DE HAINAUT Comte de Hainaut and Margareta DE FLANDRE, on 6 Jan 1186. (Cte Baudouin IX (VI) DE HAINAUT was born in Jul 1172 in Valenciennes, Hainault, Belgium and died on 11 Jun 1205 in Bulgaria.)
