Arrondissements 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th 16th 17th 18th 19th 20th. In other projects Wikimedia Commons. The prison quarter of the Palace visible today dates to the late 18th century.

Beginning in the 15th century the hall was divided into smaller rooms and prison cells. The circular stairway in the northeast corner of the Salle, built in the medieval style, was constructed in the 19th century during the reign of Napoleon III , who had briefly been held a prisoner himself in the building.

Within the walls Robert had constructed the Salle de Roi , the meeting room for the Curia Regis , the assembly of nobles and for the royal council. In , King Louis XIV, always short of money for his grandiose projects, followed the earlier practice of Henry IV at Place Dauphine, and began dividing excess land around the palace into lots for new building.