In 1218, lightning destroyed the archives of the bishopric and chapter, and destroyed the cathedral which had been rebuilt after the invasion of the Normans. In 1264, Amiens was chosen as the seat of arbitrations when King Louis IX of France settled the conflict between King Henry III of England and his rebellious barons, led by Simon de Montfort. The arbitrations led to Louis deciding on the Mise of Amiens – a one-sided settlement in favour of Henry. This decision almost immediately led to the outbreak of the Barons' War.