Mirandola: a Tragedy
In the preamble of the tragedy, John, Duke of Mirandola, marries a lady named Isidora, who was initially betrothed to Guido, the Duke's son. According to the deception of the monk Gheraldi (one of the main conspirators of the conspiracy), who had reported Guido's death in battle, Isidora is induced to consent to the marriage with Duke John. The first act therefore opens with Guido's unexpected return to Mirandola, impatient to claim the love of his betrothed and unaware of the plot that took place in his absence, since all the letters between father and son had been intercepted by the monk's machinations. Once the deception was discovered, feelings of jealousy and mistrust arose between the Duke and Guido, accentuated by the attitude of Isabella, the Duke's sister, who hoped to ensure her son's succession to the Duchy of Mirandola. With his arts and the help of the notorious monk, the Duke's passions are driven to madness: he discovers Isidora together with his son Guido, and in his jealous frenzy orders the young man to be put to death. Guido's friend, who breaks in with the intercepted letters he had accidentally recovered from Gheraldi, arrives too late to save him. Duke John then dies in an agony of repentance and passion, with Isabella's diabolical schemes crowned with success. Isidora's destiny is instead left to the imagination of the spectator.