Two houses with exposed beams at 13-15 rue François-Miron in the 4th arrondissement, often described as Medieval, were actually built in the 16th and 17th centuries. While there are no ordinary houses from the Middle Ages, there are several examples of manors built for the nobility and the high clergy. The Tour Jean-sans-Peur, at 20 rue Étienne-Marcel in the 2nd arrondissement, built in 1409–11, was part of the Hôtel de Burgogne, the Paris residence of the Dukes of Burgundy. Built by Robert de Helbuterne, it contains a stairway with a magnificent flamboyant gothic ceiling. The Hôtel de Cluny residence of the abbots of the Cluny Monastery, now the Musée national du Moyen Âge or National Museum of the Middle Ages (1490–1500), has a typical feature of manors of the period; a stairway in a tower on the exterior of the building, in the courtyard. It also contains a chapel with a spectacular flamboyant Gothic ceiling. The Hôtel de Sens was the Paris residence of the Archbishop of Sens, who had authority over the Bishops of Paris. It also featured a separate stairway tower in the courtyard. The Italian Wars conducted by Charles VIII and Louis XII, at the end of the 15th and early 16th century were not very successful from a military point of view, had a direct and beneficial effect on the architecture of Paris. The two Kings returned to France with ideas for magnificent public architecture in the new Italian Renaissance style, and brought Italian architects to build them. A new manual of classical Roman architecture by the Italian Serlio also had a major effect on the new look of French buildings. A distinctly French Renaissance style, lavishly using cut stone and lavish ornamental sculpture, developed under Henry II after 1539. The first structure in Paris in the new style was the old Pont Notre-Dame (1507–12), designed by the Italian architect Fra Giocondo. It was lined with 68 artfully designed houses, the first example of Renaissance urbanism. King Francis I commissioned the next project; a new Hôtel de Ville, or city hall, for the city. It was designed by another Italian, Domenico da Cortona, and begun in 1532 but not finished until 1628. The building was burned in 1871 by the Paris Commune, but the central portion was faithfully reconstructed in 1882.