Gauthier I Count of BRIENNE
He was an only child. He died about 1089.
Gauthier I Count of's family with Eustache DE BAR-SUR-SEINE
They had two sons named
Milo II
and
Erard I Count of
.
Children
Milo II DE BAR-SUR-SEINE
Milo II was born about 1077. He died in 1126.
Erard I Count of BRIENNE
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Gauthier I Count of BRIENNE 