Gauthier I De Brienne Count

Gauthier I's father was Engilbert II De Brienne Count and his mother was Petronille De Joigny.  His paternal grandfather was Engilbert III De Brienne Count and his paternal grandmother is Windesmode Of Salins.  He was an only child.  He died in 1089.  He was buried in 1089.

They had a son named Erard I.