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

Guillaume De was born before July 4th, 1637.  Guillaume De's father is Philippe De Mailly and his mother was Albertine De Gand-Vilain.  His paternal grandfather was Louis De Mailly and his paternal grandmother is Anne De Melun-Cottes; his maternal grandparents were Jacques Philippe De Gand-Vilain and Isabelle de Glymes-Berghes.  He is an only child.


Guillaume De's family with Isabelle Marguerie Caroline De Croy

‌Guillaume De and Isabelle Marguerie Caroline De were married in a religious ceremony on February 7th, 1661.  They have a daughter named Isabelle Philippe Therese De.


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