The imposing Lombard bell tower from 1447 of Notre-Dame-de-l'Assomption Church in Moustiers-Sainte-Marie consists of a 72 ft (22 m) high square tower, with four floors of Romanesque bays. Until the 17th century, it had the particularity of oscillating because of the movement of its bells, thus being one of the few moving bell towers recorded in Europe. In the 17th century, prior Jean de Bertet had the structure clad in iron and consolidated by thick buttresses.