The Prince's Palace is the private residence of the ruling Prince but the State Apartments are open for public visits part of the year.
The original fortress and ramparts were built by the Genoese in 1215 and throughout the centuries was transformed into one of the most luxurious residences in the style of Louis XIV. Prince Honore II was responsible for re-assembling the rich collections of art, which had been auctioned off during the French Revolution when the Palace was turned into a hospital for the Italian Army. However, Prince Rainier III is credited for restoring the Palace to its former glory and the magnificent state in which it can be seen today.
Beginning at the top of the Hercule Gallery and descending on to the main courtyard is a spectacular double-revolution Carrera marble staircase dating from the 13th century and inspired by a similar staircase at the Chateau of Fontainebleau.
Adorning the gallery walls are frescoes of mythological figures attributed to Francesco Mazzucchelli dating from the 16th century and the Genovese artist Orazio Ferrari in the 17th century. The frescoes in the Palatine chapel in the north end of the main courtyard depict the history of Saint Devote, the patron Saint of the Principality. The chapel, built-in 1665, is dedicated to Saint John the Baptist.
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