Simon de Montfort, 6th Earl of Leicester

English nobleman and rebel (c.1208 – 1265)

Simon de Montfort, 6th Earl of Leicester, 1st Earl of Chester (c. 1208 – 4 August 1265), also known as Simon V de Montfort, was an English nobleman of French origin and a member of the English peerage, who led the baronial opposition to the rule of King Henry III, culminating in the Second Barons' War. Following his initial victories over royal forces, he became de facto ruler of England, and played a major role in the constitutional development of England. During his rule, Montfort called two famous parliaments: the Oxford Parliament stripped Henry of his unlimited authority, while the second included ordinary citizens from the towns.

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