Jean de Clermont [SEP] conflict
Jean de Clermont
Jean de Clermont (d. 19 September 1356), Lord of Chantilly and of Beaumont, was a Marshal of France (1352) who was killed fighting in the Hundred Years' War at the Battle of Poitiers. 
Jean de Clermont served under the Count of Eu in 1340 during the campaigns in Hainault and Flanders. The following years he fought in Normandy, Avignon and the Languedoc. In 1352 he was sent to Flanders to negotiate a truce with the English. After the signing of the truce he
on 3 February 1357, with the consequence being the promulgation of a great edict of reform. John the Good forbade its being put into effect, whereupon a conflict ensued between Marcel and the dauphin, Marcel endeavoring to set up Charles the Bad, King of Navarre, in opposition to John. The Estates General assembled again on 13 January 1358, and on 22 February the populace of Paris, led by Marcel, invaded the palace and murdered the marshals of Champagne Jean de Conflans and Normandy Robert de Clermont, before the prince