1264 762 years ago Historical Events May 14 4 sources

Battle of Lewes: Henry III of England is captured and forced to sign the Mise of Lewes, making Simon de Montfort the effective ruler of England.

On May 14, in the year 1264, Battle of Lewes: Henry III of England is captured and forced to sign the Mise of Lewes, making Simon de Montfort the effective ruler of England. This event is recorded as a Historical Events event in the history of May 14, a notable event in this corner of history.

The Battle of Lewes was one of two main battles of the conflict known as the Second Barons' War. It took place at Lewes in Sussex, on 14 May 1264. It marked the high point of the career of Simon de Montfort, 6th Earl of Leicester, and made him the "uncrowned King of England". Henry III's forces left the safety of Lewes Castle and St. Pancras Priory to engage the barons in battle and were initially successful, with Henry's son Prince Edward routing part of the baronial army with a cavalry charge. However, Edward pursued his quarry off the battlefield and left Henry's men exposed. Henry was forced to launch an infantry attack up Offham Hill where he was defeated by the barons' men defending the summit. The royalists fled back to the castle and priory and the King was forced to sign the Mise of Lewes, ceding many of his powers to de Montfort.

Key Facts

  • This event took place on May 14, 1264 (AD era).
  • It is categorised as a Historical Events event in recorded history.
  • Referenced in 4 Wikipedia articles.
  • The event is associated with a specific geographical location (see map below).
  • Wikipedia source last updated on 12 April 2026.

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This article draws on content from Wikipedia, available under CC BY-SA 4.0.

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