 The Duke de Berry had eleven Paris residences; his preferred house was the Hôtel de Nesle on the Left Bank opposite the Île de la Cité, which used part of the old fortifications built by Philip II and which possessed a large gallery overlooking the Seine.Magnificent town houses were built between 1485 and 1510 for the Abbot of the Cluny Monastery; one of them is now the Museum of the Middle Ages.The Hôtel de Sens, the residence of the archbishop of Sens from 1490, has towers at the corners and flanking the entrance in the manner of a medieval château.