She has been known as the "kept woman," the "fancy woman," and the "other woman." The French acknowledge her existence by remarking, "The chains of marriage are so heavy that it often takes three people to carry them." She is Jeanne Antoinette de Pompadour, and Simone de Beauvoir, not to mention Marilyn Monroe and Camilla Parker-Bowles. She is a mistress, and she has been – and is – very much apart of our human cultural history. But who is she, really? What is the true nature