"Cinq-Mars" is a historical novel written by Alfred de Vigny. The story revolves around 17th-century France during the reign of Louis XIII, the story follows the rise and fall of Henri d’Effiat, Marquis de Cinq-Mars, a young nobleman who becomes involved in a plot to overthrow the powerful Cardinal Richelieu. Cinq-Mars is introduced as a talented young man who catches the eye of Richelieu and is appointed to serve as a page in the court of King Louis XIII. However, Cinq-Mars becomes disillusioned with the cardinal’s ruthless methods and is eventually drawn into a conspiracy with the Spanish court to overthrow him. The novel portrays the complex web of political intrigue that surrounds the court, as Cinq-Mars navigates the treacherous waters of courtly politics and deals with the conflicting loyalties of his fellow conspirators. "Cinq-Mars" is notable for its rich historical detail and vivid descriptions of courtly life in 17th-century France, as well as its exploration of themes such as loyalty, betrayal, and the corrupting influence of power.