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Male Gauthier Ier De Brienne Click to view Gauthier Ier De Brienne in the family tree

Gauthier Ier was born in 1045.  Gauthier Ier's father was Engelbert IV De Brienne and his mother was Pétronille De Joigny.  His paternal grandparents were Engelbert III De Brienne and Mainfreda Ou Alix Ou Adélaïde De Sens; his maternal grandparents were Geoffroy Ier De Joigny and Mainfreda Ou Alix Ou Adélaïde De Sens.  He was an only child.  He died at the age of 45 in 1090.


Gauthier Ier's family with Eustachie De Tonnerre

They had two sons named Erard Ier and Milon Ier.

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