The Battle of Evesham was fought on August 4th, 1265 in the town of Evesham, Worcestershire, England. The battle was a key event in the Second Barons' War, a conflict between King Henry III and Simon de Montfort, Earl of Leicester, who had led a rebellion against the king.

De Montfort had become the de facto ruler of England after defeating Henry III at the Battle of Lewes in 1264, and had established a revolutionary government based on the principle of parliamentary representation. However, his rule was challenged by a royalist faction led by Prince Edward (the future Edward I).

Prince Edward's army was composed of a mix of English and Welsh soldiers, while de Montfort's forces were primarily made up of barons and knights who supported his cause. De Montfort's army was outnumbered and outmaneuvered by Prince Edward, who had anticipated their movements and was able to launch a surprise attack.

The battle began with Prince Edward's forces launching a cavalry charge that broke through de Montfort's lines. De Montfort's army was quickly routed, and he was killed in the fighting. Many of his supporters were also killed or captured, effectively ending the rebellion.

The battle was one of the bloodiest fought in medieval England, with estimates suggesting that several thousand men were killed or wounded. The brutality of the fighting was exacerbated by the fact that the battle took place in the narrow streets and fields around Evesham, which made it difficult for either side to maneuver.

The Battle of Evesham marked the end of the Second Barons' War and paved the way for the restoration of royal authority under Henry III. It also had important implications for the development of parliamentary government in England, as de Montfort's experiment in representative government was cut short by his defeat.

The battle was fought after Prince Edward, who had been held captive by de Montfort, escaped and raised an army to challenge de Montfort's rule. The two sides met at Evesham, where de Montfort's forces were defeated and he was killed. The battle marked the end of the rebellion and paved the way for the restoration of royal authority under Henry III.

The Battle of Evesham is significant for several reasons. It was one of the bloodiest battles fought in medieval England, and it marked the end of a period of political and social upheaval. It also had important implications for the development of parliamentary government, as de Montfort's experiment in representative government was cut short by his defeat.