Young Catherine de' Medici is the sole heiress to the entire fortune of the wealthy Medici family. But her life is far from luxurious. After a childhood spent locked away behind the walls of a convent, she joins the household of the pope, where at last she can be united with her true love. But, all too soon, that love is replaced with an engagement to a boy who is cold and aloof. It soon becomes clear that Catherine will need all the cunning she can muster to command the respect she deserves as one of France's most powerful queens.