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

Guillaume was born about 1105 in France.  Guillaume's father is Guillaume de Montmirail III and his mother is Eustacia de Normandy.  His paternal grandparents are Sire Guillaume de Montmirail II and Eustace de Crepon; his maternal grandparents were King Henry ("Beauclerc", "Fine Scholar") Plantagenet I of England and Sibyl Corbet.  He was an only child.  He died in 1170.


Guillaume's family

He had a biological daughter named Maud.

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