Some Medieval specialists elaborated on the idea of an infantry revolution happening early in the 14th century, when in some relevant battles, like Courtrai (1302), Bannockburn (1314) or Halmyros (1311), heavy cavalry was routed by infantry;; however, it can be pointed out that in all those battles infantry was entrenched or positioned in rough terrain unsuited for cavalry, like in other battles of the 14th and 15th century in which cavalry was defeated. In fact infantry had been victorious in earlier times in similar situations, for instance at the battle of Legnano in 1176, but in open ground infantry still had the worst, as shown for instance at the battle of Patay (1429) and the battle of Formigny (1450) in which the vaunted English longbowmen were easily run down; however, the experience of battles like Courtrai and Bannockburn meant that the myth of the invincible knight disappeared, which was in itself important for transforming medieval warfare.
