The earliest records of Kõljala manor date to 1509. Traces of the oldest construction have been preserved in the cellars, and these date to the 17th century.
In those days the manor belonged to Otto von Poll, a leader of the Saaremaa German nobility. His lifestyle was somewhat different from the rest, and this was reflected in the furnishings of the manor house. Although the house itself was of one-story limestone construction, it is known that the rooms were lit by ten brass chandeliers, the curtains at the windows had golden fringes, and there were twelve large Flemish carpets hung on the walls.
In 1677 the new owner, J. von Osten-Sacken, had two large brass cannons placed in front of the manor. These he had received as a gift from the Swedish king, Karl XI. The cannon were still there at the beginning of the 20th century.
The next extensive reconstruction and building period took place during 1760-1770. Maps and charts dating from 1784 picture the manor very similar to what it looks like today, a single-story building with a hipped roof and three chimneys. In the middle of the 19th century, the new owner F. W. von Buxhoevden added further "improvements" to the building in the form of then-popular classisistic details, such as the portico with four Ionian pillars.
The classisistic style continued in the landscape design that surrounded the manor house. Full-grown, mature trees formed the backdrop for the house, and on the south side among the trees there were placed three arched gate buildings. Unfortunately, only one has survived.
Today Kõljala manor stands in private ownership.
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.