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Male Guillaume III , Count Of Hainault De Avesnes Click to view Guillaume III , Count Of Hainault De Avesnes in the family tree

Guillaume III , Count Of Hainault was born in 1286 in Avesnes,Pas-de-Calais,FRANCE.  Guillaume III , Count Of Hainault's father was Jean II , Count Of Hainault De Avesnes and his mother was Countess Of Luxemburg Phillipine.  His paternal grandparents were Jean I De Avesnes and Aleida Countess Of Holland; his maternal grandparents were Henri II Count Of Luxembourg UNKNOWN and Marguerite De Bar. He had three brothers and six sisters, named Henri, Jean, Valeran, Alix, Marguerite, Isabelle, Jeanne, Marie and Ida.  He was the second youngest of the ten children.  He died at the age of 51 on June 7th, 1337 in Valenciennes,Nord,FRANCE.


Guillaume III , Count Of Hainault's family with Jeanne De Valois

‌Guillaume III , Count Of Hainault and Jeanne were married in a religious ceremony on May 19th, 1305 in Chanay,Ain,FRANCE.  They had three sons and six daughters, named Jan, IV, Count Of Holland, Louis, Sibylla, Margaretha Countess Of, Countess Of Hainault & Holland, Jeanne, Countess Of Holland and Elisabeth Or , Countess Of Holland.

Sources/Citations
GEDCOM File : 46438.ged, GEDCOM File : rowland2.ged