History of the Palace of Versailles but was never finished due to the king's death. Significant among Louis XV's contributions to Versailles were the "petit appartement du roi"; the "appartements de Mesdames", the "appartement du dauphin", the "appartement de la dauphine" on the ground floor; and the two private apartments of Louis XV – "petit appartement du roi au deuxième étage" (later transformed into the "appartement de Madame du Barry") and the "petit appartement du roi au troisième étage" – on the second and third floors of the palace. The crowning achievements of Louis XV's reign were the construction of the Opéra and the Petit Trianon.
Subsidiary structures of the Palace of Versailles lavish banquets. Accordingly, Trianon-sous-bois was remodeled to provide modern living accommodations and the basement was completely renovated to accommodate modern professional kitchens. The Grand Trianon has been designated an official residence of the French president and often serves as a residence for visiting heads of state. It was during the presidency of Jacques Chirac that Trianon-sous-bois was opened to limited public tours. Located near the Grand Trianon, the Petit Trianon was built between 1762 and 1768 by Jacques-Anges Gabriel for Louis XV. The area that is now the Petit Trianon came to prominence when Louis XV established his "jardins botaniques"