De Montfort Defeats King Henry: Parliament's Seeds Sown
Simon de Montfort's rebel army engaged King Henry III's royal forces at Lewes, opening the decisive battle of the Second Barons' War. De Montfort's victory and capture of the king led directly to England's first elected parliament in 1265, establishing the principle that monarchs must govern with the consent of representatives.
May 12, 1264
762 years ago
What Else Happened on May 12
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