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Male Thierry De Avesnes Click to view Thierry De Avesnes in the family tree

Thierry De was born about 1132 in Of,Oizy,Namur,Belgium.  Thierry De's father was Wauthier De Oisy and his mother was Ade De Tournai.  His paternal grandparents were Fastre De Oisy and Richilde; his maternal grandparents were Everard I De Mortagne De Tournai and Helvide. He had four brothers and a sister, named Nicolas "Plukiel" Seigneur De, Evrard De, Gossuin De, Fastre De and Petronille d'.  He was the third oldest of the six children.

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Ancestral File (R)

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