The petit appartement du roi (French: [pɛˈtit‿apaʁtəˈmɑ̃dyʁwa]) of the Palace of Versailles is a suite of rooms used by Louis XIV, Louis XV, and Louis XVI. Located on the first floor of the palace, the rooms are found in the oldest part of the palace dating from the reign of Louis XIII. Under Louis XIV, these rooms housed the king’s collections of artworks and books, forming a museum of sorts. Under Louis XV and Louis XVI, the rooms were modified to accommodate private living quarters. At this time, the rooms were transformed and their decoration represent some of the finest extant examples of the style Louis XV and style Louis XVI at Versailles (Kimball, 1943).