world · Europe
Philip Augustus wins the Battle of Bouvines
By 1214 Philip II of France, known as Philip Augustus, had taken Normandy, Anjou and most of the other French lands of the English kings. King John of England, determined to win them back, built an alliance with his nephew the Holy Roman Emperor Otto IV and two powerful vassals of the French king, Ferrand, Count of Flanders, and Renaud, Count of Boulogne. John would attack from the west while the allies marched on Paris from the north, but his own campaign collapsed at La Roche-aux-Moines early in July. On Sunday 27 July 1214 Philip caught the northern army on the plain near the village of Bouvines, between Lille and Tournai. In a hard-fought battle the king was pulled from his horse and nearly killed, but the French knights broke the allies; Otto fled the field and Ferrand and Renaud were taken prisoner. Bouvines confirmed Philip’s conquests and made the French crown the strongest power in France. Otto lost his throne to Frederick II, and John came home weakened and broke, which led within a year to Magna Carta.
Source: Britannica: Battle of Bouvines ↗