Sénéchal the Magnificent (French: Sénéchal le magnifique) is a 1957 French-Italian comedy film directed by Jean Boyer and starring Fernandel, Nadia Gray and Madeleine Barbulée.[1][2] It was shot at Billancourt Studios. The film's sets were designed by the art director Robert Giordani. It is also known by the alternative title His Greatest Role.