The Battle of Adramyttion occurred on 19 March 1205 between the Latin Crusaders and the Byzantine Greek Empire of Nicaea, one of the kingdoms established after the fall of Constantinople to the Fourth Crusade in 1204. It resulted in a comprehensive victory for the Latins. There are two accounts of the battle, one by Geoffrey de Villehardouin, and the other by Nicetas Choniates, which differ significantly.