The last novel of the most odious French writer of the 18th century - the Marquis de Sade. In 1764, the Marquis de Sade discovered documents in the Chartres monastery in Dijon that allowed him to shed light on the life story of one of the most controversial women of the Middle Ages - Queen Isabella of Bavaria of France, wife the mad king Charles VI, an eccentric, cruel, lover of the joys of the flesh and art, but in her own way a very realistic ruler who advocated the conclusion of an eternal alliance between France and England...