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| Battle of Northampton | |||||||
|---|---|---|---|---|---|---|---|
| Part of Second Barons' War | |||||||
| |||||||
| Belligerents | |||||||
| Royal forces | Baronial forces | ||||||
| Commanders and leaders | |||||||
|
Henry III Roger Mortimer Philip Marmion |
Simon de Montfort Simon de Montfort the Younger (POW) | ||||||
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The Battle of Northampton took place during the Second Barons' War. A decisive victory for the royalist forces of King Henry III of England, who took Northampton Castle and captured Simon de Montfort (the Younger), son of Simon de Montfort (the Older).