This square was once a crossroads between Roman roads and owes its name to the Marché-aux-Poissons (Fish Market) that once stood here. The old houses around the square make it a very picturesque place.

You will find the house called «under the pillars»: above its Renaissance portico are flamboyant gothic bays and a niche. In the niche, see the statue of Saint Anne, the Virgin and Child. To the left, note the charming bowed house with its turret.