The Palazzo Ducale di Mantova ("Ducal Palace") is a group of buildings in Mantua, Lombardy, northern Italy, built between the 14th and the 17th century mainly by the noble family of Gonzaga as their royal residence in the capital of their Duchy. The buildings are connected by corridors and galleries and are enriched by inner courts and wide gardens. The complex includes some 500 rooms and occupies an area of c. 34,000 m2, which make it the sixth largest palace in Europe after the palaces of the Vatican, the Louvre Palace, the Palace of Versailles, the Royal Palace of Caserta and the Castle of Fontainebleau. It has more than 500 rooms and contains seven gardens and eight courtyards. Although most famous for Mantegna's frescos in the Camera degli Sposi (Wedding Room), they have many other very significant architectural and painted elements. The Gonzaga family lived in the palace from 1328 to 1707, when the dynasty died out. Subsequently, the buildings saw a sharp decline, which was halted in the 20th century with a continuing process of restoration and the designation of the area as museum. In 1998, a hidden room was discovered by Palace scholars, led by musicologist Paula Bezzutti. The room is thought to have been used for performances of Monteverdi's music in the late 16th century. Corte Vecchia The entrance of the palace is from Piazza Sordello, onto which the most ancient buildings, the Palazzo del Capitano and the Magna Domus, open. They formed the original nucleus of the so-called Corte Vecchia. The Palazzo del Capitano ("Captain's Palace") was built in the late 13th century by the Captain of the People Guido Buonacolsi (whose family ruled Mantua from 1271 to 1328). Initially built on two floors and separated from the Magna Domus (Latin: "Big House") by an alley, in the early 14th century it received a further floor and was united to the Magna Domus by a large façade with a portico. The additional floor consists of a huge hall (67x15 m), known as "Hall of the Weapon Room" of "Hall of Diet", as it housed the Diet of Mantua in 1459. The monumental Scalone delle Duchesse ("Duchesses' Staircase"), built in the 17th century and renovated in 1779 by Paolo Pozzo, leads to the Room of the Morone, named after the 1494 canvas of the Veronese painter Domenico Morone, portraying the Expulsion of the Bonacolsi in 1328. In