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Male Count Guillaume d'Alencon I of Sannois Click to view Count Guillaume d'Alencon I of Sannois in the family tree

Guillaume was born in 0970 in Normandy, France.  Guillaume's father was Sgn William de Beleme de Saonnois and his mother was Dame Mathilde de Conde-Noirau.  His paternal grandparents were Count Yves de Beleme I of Alencon and Gohilda de Mans.  He was an only child.  He died at the age of 61 in 1031 in Domfront, France.  He was buried in Notre Dame sur l'eau, France.


Guillaume's family with Matilda de Ganelon

‌Guillaume and Matilda were married in a religious ceremony in 0991 in France.  They had two sons named Guillaume and Enricule.

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