He succeeded Baldwin of Boulogne in the County of Edessa when his cousin left the county for Jerusalem .
He accompanied his cousins , Godfrey of Bouillon , and Baldwin of Boulogne , to the Holy Land during the First Crusade .
Baldwin of Boulogne succeeded Baldwin of Boulogne of Boulogne in the County of Edessa when Baldwin of Boulogne 's cousin left the county for Jerusalem .
He accompanied his cousins , Godfrey of Bouillon , and Baldwin of Boulogne , to the Holy Land during the First Crusade .