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.
Le Trianon (theatre) Le Trianon (theatre) Le Trianon is a theatre and concert hall in Paris. It is located at 80, boulevard de Rochechouart, in the 18th arrondissement of Paris, at the foot of the hill of Montmartre. The "Trianon-Concert" was built as a "café concert" in 1894 in the garden of the "Élysée Montmartre", which was requisitioned for the purpose. Édouard Jean Niermans (1859-1928), a young architect who designed or rebuilt several theaters around that time, designed and decorated the Trianon-Concert. Opening in 1895, the Trianon-Concert was one of Paris's first music halls. Mistinguett, (Jeanne-Marie Bourgeois) made her debut at the Petit-Casino