This elegant building dates from the fifteenth and eighteenth centuries. The portal was built to plans by Serlio: on the front, note the low relief, a small Adoration of the Magi and the wealth of carved door panels. The courtyard is pleasant despite the buildings added in the seventeenth century. In the courtyard, the beautiful pink round tower of the sixteenth century is pierced with bays. It houses the spiral staircase, the well and its carved shell canopy in Renaissance style. This tower has given its name to the hotel, La Tour Rose, located at 22 rue du Boeuf.