At the edge of the forest of Fontainebleau and installed on the banks of the Loing, this fortified square of the twelfth century belonged to the royal domain. In 1120, King Louis VI Le Gros erected it in castellany. It then comprised 1356 meters of ramparts, twenty turrets, three gates and a dungeon. Some remains are still well preserved today and contribute to the charm of the city. The Burgundy Gate (to be visited during the European Heritage Days) and the Samois Gate (the so-called Porte de Paris) have kept looking great at both ends of Grande Street. Since the impressionist painter Alfred Sisley settled in Moret-sur-Loing, many artists from all countries have come to put their easel there.