Fulcher of Chartres travelled through Asia Minor to Marash, shortly before the army's arrival at Antioch in 1097, where he was appointed chaplain to Baldwin of Boulogne. He followed his new lord after Baldwin split off from the main army, to Edessa, where Baldwin founded the county of Edessa. After the conquest of Jerusalem in 1099 Fulcher and Baldwin travelled to the city to complete their vow of pilgrimage. When Baldwin became king of Jerusalem in 1100, Fulcher came with him to Jerusalem and continued to act as his chaplain until Baldwin died in 1118. At that time, Fulcher may have been serving
Baldwin I of Jerusalem the Seljuq Sultan of Rum, in the Battle of Dorylaeum on 1July 1097, Baldwin and the Norman Tancred broke away from the main body of the army. They marched as far as Heraclea where they again joined their fellows around 15 August. The long march across Asia Minor in the heat of summer exhausted the crusaders and most knights' horses died. To secure a supply of food and forage, Baldwin and Tancred were sent to the fertile plains of Cilicia. They could count on the local Armenians' support, especially as Baldwin had already been befriended by an Armenian nobleman, Bagrat.