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Male Guy Ier De Dampierre Click to view Guy Ier De Dampierre in the family tree

Guy Ier was born in 1105.  Guy Ier's father was Thibaut II De Dampierre and his mother was Isabeau De Montlhéry.  His paternal grandparents were Thibaut Ier De Dampierre and Marie De Saint-Just; his maternal grandparents were Milon Ier Le Grand Dit De Bray De Montlhéry and Litause Ou Lithuise De Troyes.  He was an only child.  He died at the age of 46 in 1151.


Guy Ier's family with Helvide De Baudement

‌Guy Ier and Helvide were married in a religious ceremony in 1120.  They had a son named Guillaume Ier.

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