Cinq-Mars
Original novel · Opera · 1877
Cinq-Mars loves Princess Marie de Gonzague, who is promised in marriage to the King of Poland. After hearing of the planned match, he enters a conspiracy of French nobles against Cardinal Richelieu, who refuses to approve his marriage to Marie. Cinq-Mars joins the plot despite De Thou’s warning against involving Spain. He and Marie exchange wedding vows, but a spy reports the conspiracy to Father Joseph. Joseph tells Marie that Cinq-Mars will be executed for treason unless she agrees to the Polish match. She capitulates, but Cinq-Mars is still condemned. In prison, Marie reveals that Joseph deceived her and admits she has always loved Cinq-Mars. De Thou’s escape plan fails when the execution is moved forward, and Cinq-Mars and De Thou pray before being led to the gallows.