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Male Guillaume III de la Guerche Click to view Guillaume III de la Guerche in the family tree

Guillaume III was born in 1193 in Châteaubriant, Loire-Atlantique, France.  Guillaume III's father was Seigneur Geoffroi de la Guerche III and his mother is Louise de Chateau-Gontier.  His paternal grandfather was Hugues de la Guerche and his paternal grandmother is Marquise  de Craon; his maternal grandfather was Seigneur Allard de Chateau-Gontier III and his maternal grandmother is Mélissende.  He was an only child.  He died at the age of 30 on September 4th, 1223.


Guillaume III's family with Hersende de Sillé-le-Guillaume

‌Guillaume III and Hersende were married in a religious ceremony in 1206 in Pountose, Normandie, Franc.  They had a son named Geoffrey.

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