Family/Spouse: Guillaume I Holland. [Group Sheet] [Family Chart]
Marie married Otto von Braunschweig after 19 May 1214. [Group Sheet] [Family Chart]
Family/Spouse: Mathilda Brabant. Mathilda (daughter of Duke of Brabant Henri I Brabant and Matilda de Boulogne) died on 21 Dec 1267. [Group Sheet] [Family Chart]