Marie Françoise Catherine de Beauvau-Craon Tags: Noble.Marie Françoise Catherine de Beauvau-Craon marquise de Boufflers (1711–1787) commonly known as Madame de Boufflers was a French noblewoman. She was the royal mistress of Stanislas Leszczyński and mother of the poet Stanislas de Boufflers. thumbnail birth date 1711-01-01T00:00:00+02:00 child Stanislas de Boufflers death date 1787-01-01T00:00:00+02:00 nationality France parent Marc de Beauvau Prince of Craon state of origin France Learn more... Loading...