Portrait of Marquise de Pompadour    Jeanne-Antoinette Poisson, Marquise de Pompadour, also known as Madame de Pompadour (29 December 1721 – 15 April 1764), was a member of the French court, and was the official maîtresse-en-titre of Louis XV from 1745 to 1750.    François Boucher, Portrait de la marquise de Pompadour, 1759, Wallace Collection, Londen