In 1100, Tancred became regent of Antioch when Bohemond was taken prisoner by the Danishmends at the Battle of Melitene. He expanded the territory of the Latin principality by capturing land from the Byzantines, although, over the next decade, Alexius attempted, unsuccessfully, to bring him under Byzantine control. In 1104, he also took control of the County of Edessa when Baldwin II was taken captive after the Battle of Harran. After Baldwin's release in late 1108, he had to fight Tancred (probably early 1109) to regain control of the county; Tancred was eventually defeated and returned to Antioch. After Harran, Bohemond returned to Europe to recruit more Crusaders, again leaving his nephew as regent in Antioch. Tancred's victory over Radwan of Aleppo at the Battle of Artah in 1105 allowed the Latin principality to recover some its territories east of the Orontes River.