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Male Sire Guillaume de Montmirail II Click to view Sire Guillaume de Montmirail II in the family tree

Guillaume was born about 1045 in France.  Guillaume's father was Seigneur Guillaume Gouet I of Montmirail & Authon and his mother was Matilda de Alluyes.  His maternal grandfather is Walter de Alluyes.  He is an only child.


Guillaume's family with Eustace de Crepon

They have a son named Guillaume.

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