Called Regence (after the Regency of Louis XV, 1715-1723, as he was too young to immediately take the throne after the death of Louis XIV), the style moves away from the heavy baroque formalism which Louis XIV dictated at Versailles and into the less formal style found in upper class Parisian townhouses.
This was the birth of the French boiserie as we celebrate it today and you can see it here painted white with the crown and overmantel picked out in gilding. I love seeing the baby steps between formal design styles such as this and that they coincide with major political events fascinates my inner geek!