Charlotte de Sauve, French courtesan (died 1617)

Charlotte de Beaune Semblançay, Viscountess of Tours, Baroness de Sauve, Marquise de Noirmoutier was a French noblewoman and a mistress of King Henry of Navarre, who later ruled as King Henry IV of France. She was a member of queen mother Catherine de' Medici's notorious "Flying Squadron", a group of beautiful female spies and informants recruited to seduce important men at court, and thereby extract information to pass on to the Queen Mother.