(July 27, 1214) Decisive victory won by the French king Philip II over an international coalition that included Emperor Otto IV , King John of England, and several powerful French vassals.
Fought in the marshy plain between Bouvines and Tournai in Flanders, the battle was furiously contested but ended in a clear French victory. It confirmed Philip's possession of French lands formerly held by the English and added to the power and prestige of the French monarchy. John's defeat increased the opposition of his barons.