Jan van Oostervant

Parents

• Philippa of Luxembourg
• John I of Hainaut

Children

Siblings

• William I, Count of Hainaut
• John of Beaumont
• Isabelle of Avesnes
• Alice of Hainault
• Mary of Avesnes
• Simon Heer van Bruelis
• Aleida de Hainaut
• Marguerite d'Avesnes
• Willem Cuser