 In the 14th and 15th centuries, many of the painters came from Flanders and the north and worked for the courts of Duke John of Berry at Bourges and the Duke of Burgundy, as well as for clients in Paris.Among the most celebrated artists were the Limbourg Brothers, who produced the Très Riches Heures du Duc de Berry, and Jean Fouquet, who illustrated the history of France for his royal patrons.The art of sculpture, practiced in Paris since Roman times, reached a summit during the Middle Ages in the decoration of the Cathedral of Notre Dame, particularly in the sculptures above the portals on the western facade.