The Palazzo Ducale di Mantova ('Ducal Palace') is a group of buildings in Mantua, 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. 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. The oldest structures, those located on Piazza Sordello square, were built between the 13th century and the 14th century by the Bonacorsi family, who dominated Mantua before being ruled out by the Gonzagas in 1328.
In the late 14th century, an imposing fortress, the Castle of Saint George, was built near the city’s lakefront. The castle was designed by military architect Bartolino da Novara as a defensive structure aimed at protecting the heart of the town, and subsequently converted into the main residence of the Gonzaga family.
In 1556, Guglielmo Gonzaga took the decision to merge those buildings into a single, grandiose architectural complex. Therefore, a number of late Renaissance-style courtyards, gardens, passages, porticoes, and new wings were built in the second half of the 16th century after designs by some of the most renowned architects and artists of the time, including Giulio Romano, Giovan Battista Bertani, and Antonio Maria Viani.
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. The room is thought to have been used for performances of Monteverdi's music in the late 16th century.
Royal Palace of Naples was one of the four residences near Naples used by the Bourbon Kings during their rule of the Kingdom of the Two Sicilies (1734-1860): the others were the palaces of Caserta, Capodimonte overlooking Naples, and the third Portici, on the slopes of Vesuvius.
Construction on the present building was begun in the 17th century by the architect Domenico Fontana. Intended to house the King Philip III of Spain on a visit never fulfilled to this part of his kingdom, instead it initially housed the Viceroy Fernando Ruiz de Castro, count of Lemos. By 1616, the facade had been completed, and by 1620, the interior was frescoed by Battistello Caracciolo, Giovanni Balducci, and Belisario Corenzio. The decoration of the Royal Chapel of Assumption was not completed until 1644 by Antonio Picchiatti.
In 1734, with the arrival of Charles III of Spain to Naples, the palace became the royal residence of the Bourbons. On the occasion of his marriage to Maria Amalia of Saxony in 1738, Francesco De Mura and Domenico Antonio Vaccaro helped remodel the interior. Further modernization took place under Ferdinand I of the Two Sicilies. In 1768, on the occasion of his marriage to Maria Carolina of Austria, under the direction of Ferdinando Fuga, the great hall was rebuilt and the court theater added. During the second half of the 18th century, a 'new wing' was added, which in 1927 became the Vittorio Emanuele III National Library. By the 18th century, the royal residence was moved to Reggia of Caserta, as that inland town was more defensible from naval assault, as well as more distant from the often-rebellious populace of Naples.
During the Napoleonic occupation the palace was enriched by Joachim Murat and his wife, Caroline Bonaparte, with Neoclassic decorations and furnishings. However, a fire in 1837 damaged many rooms, and required restoration from 1838 to 1858 under the direction of Gaetano Genovese. Further additions of a Party Wing and a Belvedere were made in this period. At the corner of the palace with San Carlo Theatre, a new facade was created that obscured the viceroyal palace of Pedro de Toledo.
In 1922, it was decided to transfer here the contents of the National Library. The transfer of library collections was made by 1925.
The library suffered from bombing during World War II and the subsequent military occupation of the building caused serious damage. Today, the palace and adjacent grounds house the famous Teatro San Carlo, the smaller Teatrino di Corte (recently restored), the Biblioteca Nazionale Vittorio Emanuele III, a museum, and offices, including those of the regional tourist board.