Mise of Amiens Issued

Date: January 23, 1264 • Location: Paris, France

This milestone marked the outbreak and beginning of this historic period, which spanned 1264–1267.

In the conflict between King Henry III of England and his rebellious barons led by Simon de Montfort, King Louis IX of France issues the Mise of Amiens, a one-sided decision in favour of Henry that later leads to the Second Barons' War.

Henry III, also known as Henry of Winchester, was King of England, Lord of Ireland and Duke of Aquitaine from 1216 until his death in 1272.