A famous mistress of Louis XV., born in Paris; celebrated for her beauty and wit; throwing herself, though a married woman, in the king's way, she took his fancy, and was installed at Versailles; for 20 years exercised an influence both over him and the affairs of the kingdom, to the corruption and ruin of both, and the exasperation of the nation; she was preceded as mistress of Louis by La Châteroux, and succeeded by Du Barri (1721-1764).