The Battle of Messinopolis (Bulgarian: Битка при Месинопол) took place on 4 September, 1207, at Mosynopolis near the town of Komotini in contemporary Greece, and was fought between the Bulgarians and the Latin Empire. It resulted in a Bulgarian victory.While the armies of the Bulgarian emperor Kaloyan were besieging Odrin, Boniface of Montferrat, king of Thessalonica, launched attacks towards Bulgaria from Serres.