 It was Bishop Philippe who moved to have Pinchon canonised on 12 April 1247.Over one hundred years later the cathedral suffered much damage at the hands of the English during the destructive War of the Breton Succession and then by a fire at the end of 1353.After the fire, Bishop Guy de Montfort made the reconstruction a priority and started work on the choir which was completed between 1354 and 1357.