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Male Guillaume De Thiers Click to view Guillaume De Thiers in the family tree

Guillaume De was born about 1303.  Guillaume De's father is Louis De Thiers and his mother is Isabeau Dalmas-Cousan.  His paternal grandparents are Guy VII De Thiers and Marguerite De Thiers; his maternal grandfather was Hugues Dalmas-Cousan.  He is an only child.


Guillaume De's family with Agnes De Rochefort-Aurouze

They have a daughter named Marguerite De.


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