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Male Jean de Avesnes Click to view Jean de Avesnes in the family tree

Jean was born in 1218 in Etroeungt, Nord, France.  Jean's father was Burchard de Avesnes and his mother was Margaret I of Flanders.  His paternal grandfather was Jacques de Avesnes and his paternal grandmother is Adelphie de Guise; his maternal grandparents were Baldwin VI (IX of Flanders) of Hainault and Marie (Mary) of Champagne.  He was an only child.  He died at the age of 39 on December 24th, 1257 in Valenciennes, Nord, France.


Jean's family with Aleidis de Hainault

They had a son named Jan II.

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