The Mise of Amiens was a settlement given by King Louis IX of France on 23 January 1264 in the conflict between King Henry III of England and his rebellious barons, led by Simon de Montfort. Louis' on
Saint Louis Mediating Between the King of England and His Barons by Georges Rouget, 1820
Letter by which Henry III, King of England, took the King of France, Louis IX, to arbitrate his dispute with his barons, written at Windsor on 16 October 1263 (Document kept in Archives nationales (France), France