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Male Seigneur William I of Dampierre Click to view Seigneur William I of Dampierre in the family tree

William was born in Troyes, Champagne, France.  William's father was Viscount Guy de Dampierre I of Troyes and his mother was Helvide de Baudemont.  His paternal grandfather was Thibault de Dampierre-sur-l'Aube II and his paternal grandmother is Elizabeth de Montlhery; his maternal grandfather was Seigneur Andre de Baudemont of Ramerupt and his maternal grandmother is Dame Agnes de Braine. He had a sister named Agnes.  He died in 1161.


William's family with Ermengarde de Mouchy

‌William and Ermengarde were married in a religious ceremony in 1160 in France.  They had two sons and a daughter, named Guy, Gui and Helvide.

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