A rebellion of French peasants in northern France (May–June 1358), named after “Jacques Bonhomme”, the aristocrats’ nickname for a French peasant. A leader, Guillaume Karle (or Cale) emerged, and a bourgeois revolt in Paris helped the movement. The Black Death, the French defeat at Poitiers, the ravages of brigands, feudal burdens, and governmental demands for extra fortification work were all contributary causes. Castles were demolished and looted; but the rebellion was short-lived, collapsing after the execution of Karle and the massacre of a mob at Meaux.