Background
He was the son of Gautier I of Brienne, count of Brienne, and his wife Eustachie of Tonnerre.
He was the son of Gautier I of Brienne, count of Brienne, and his wife Eustachie of Tonnerre.
In 1097 he fought in the First Crusade. They had 3 children :
Gautier II of Brienne, count of Brienne and lord of Ramerupt. Guy of Brienne
Félicité of Brienne, who married Simon I of Broyes then in 1142 Geoffroy III, sire de Joinville.