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Male Willem De Avesnes Click to view Willem De Avesnes in the family tree

Willem was born in 1286 in Avesnes, Pas De Calais, France.  Willem's father was Jean De Avesnes and his mother was Philippina Countess Luxembourg Maas.  His paternal grandparents were Jean I De Avesnes and Aleida De Holland; his maternal grandparents were Henri Count Luxembourg Maas and Marguerite De Bar.  He was an only child.  He died at the age of 51 on June 7th, 1337 in Valenciennes, Nord, France.


Willem's family with Jeanne De Valois

‌Willem and Jeanne were married in a religious ceremony on May 19th, 1305 in Longpont, Aisen, France.  They had a daughter named Philippa.

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