Madame de Pompadour, born Jeanne Antoinette Poisson in 1721, was a prominent French noblewoman and the official mistress of King Louis XV. She played a significant role in the cultural and political life of France during the 18th century, influencing art, architecture, and literature. As a patron of the arts, Madame de Pompadour supported renowned artists like François Boucher and contributed to the development of the Rococo style. Her involvement in politics and diplomacy helped shape France's foreign relations, making her one of the most powerful women of her time.