The Triumph of Etienne Marcel. During the Estates General assembly of 1358 the populace of Paris, led by Marcel, invaded the palace and murdered the marshals of Champagne Jean de Conflans and Normandy Robert de Clermont in front of The Dauphin. ????otienne Marcel, c.1302/1310 ????Z??s 1358. Provost of the merchants of Paris under King John II of France. From Hutchinson's History of the Nations, published 1915.