<P> Plan of the main floor (c. 1837, with north to the right), showing the Hall of Mirrors in red, the Hall of Battles in green, the Royal Chapel in yellow, and the Royal Opera in blue </P> <P> As a result of Le Vau's enveloppe of Louis XIII's former hunting lodge transforming it, between 1631 and 1634, into a red brick and white stone small château, with a black tile roof, the king and the queen had new apartments in the new addition, known at the time as the château neuf . The grands appartements (Grand Apartments, also referred to as the State Apartments) are known respectively as the grand appartement du roi and the grand appartement de la reine . They occupied the main or principal floor of the château neuf, with three rooms in each apartment facing the garden to the west and four facing the garden parterres to the north and south, respectively . Le Vau's design for the state apartments closely followed Italian models of the day, as evidenced by the placement of the apartments on the next floor up from the ground level--the piano nobile--a convention the architect borrowed from 16th - and 17th - century Italian palace design . </P> <P> The king's apartment consisted of an enfilade of seven rooms, each dedicated to one of the then known planets and their associated titular Roman deity . The queen's apartment formed a parallel enfilade with that of the grand appartement du roi . It served as the residence of three queens of France - Marie - Thérèse d'Autriche, wife of Louis XIV, Marie Leczinska, wife of Louis XV, and Marie - Antoinette, wife of Louis XVI . Additionally, Louis XIV's granddaughter - in - law, Princess Marie - Adélaïde of Savoy, duchesse de Bourgogne, wife of the Petit Dauphin, occupied these rooms from 1697 (the year of her marriage) to her death in 1712 . After the addition of the Hall of Mirrors (1678--1684) the king's apartment was reduced to five rooms (until the reign of Louis XV, when two more rooms were added) and the queen's to four . </P> <P> The appartement du roi is a suite of rooms originally set aside for the personal use of Louis XIV in 1683 . His successors, Louis XV and Louis XVI, used these rooms for such ceremonies as the lever and the coucher . </P>

What is the significance of the seven rooms in the palace