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Male Guillaume de Montmirail III Click to view Guillaume de Montmirail III in the family tree

Guillaume was born about 1075 in France.  Guillaume's father is Sire Guillaume de Montmirail II and his mother is Eustace de Crepon.  His paternal grandparents were Seigneur Guillaume Gouet I of Montmirail & Authon and Matilda de Alluyes.  He is an only child.


Guillaume's family with Eustacia de Normandy

They had a son named Guillaume.

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