La Forza del Destino is an opera in four acts by Giuseppe Verdi, with a libretto by Francesco Maria Piave, founded on a drama of the Duke of Rivas, called Don Alvaro o la Fuerzer del Sino. It was first produced at the Imperial Theatre of St. Petersburg and at Madrid.

Plot

Place, Spain.
Time, 18th Century.

ACT I. Don Alvaro is a young nobleman from India who has settled in Seville, where, however, he is not very well thought of. He falls in love with Donna Leonora, the daughter of the Marquis of Calatrava, who, notwithstanding his love for his daughter, is determined that she shall marry only a man of the highest origin. Leonora, knowing her father’s aversion, and deeply in love with Alvaro, determines to elope with him, aided by her confidante, Curra. On the point of departure with him, she suddenly desires to see her father for a last time. Her father unexpectedly enters and discovers Alvaro; he threatens him with death, and Alvaro in order to remove any suspicion as to Leonora’s purity, offers to surrender himself to the Marquis. He flings down his pistol which goes off and mortally wounds the Marquis who dies cursing his daughter.

ACT II. The Alcade, several peasant muleteers, and Don Carlo of Vargas, the brother of Donna Leonora, are gathered in the kitchen of an inn in the village of Hornachuelos. Don Carlo is searching for Don Alvaro to avenge the death of his father and is disguised as a student of Salamanca, under the fictitious name of Pereda. Leonora, in male attire arrives. During the supper, Preziosilla, a young gipsy, tells the young men’s fortunes and exhorts them to enlist in the war for Italy’s freedom, which all agree to do. In a very beautiful solo, Don Carlo tells them of his father’s death. Leonora overhears his song and barely escapes discovery by him. She takes refuge in a monastery where she tells the abbot her true name and that she intends to spend the remainder of her life in a hermitage. After the abbot has recounted the trials she will have to undergo, she departs for her cave.

ACT III. Meanwhile Don Alvaro has joined the Spanish army under the name of Don Federico Herreros. One night he saves the life of Don Carlo who is serving in the same army under the name of Don Felix Bornos. They become close friends and go into battle side by side. In one of these engagements Don Alvaro is, as he supposes, mortally wounded, and confides to Don Carlo’s care a valise containing a bundle of letters which he is to destroy as soon as Don Alvaro dies. Don Carlo has sworn not to look at the contents of the letters; but he becomes suspicious of his friend, opens the valise and finds his sister’s picture. At that moment a surgeon brings word that Don Alvaro may recover. Don Carlo is overjoyed at the idea of revenging his father’s death. The scene changes to a camp near Velletri (Italy) where Don Carlo and Don Alvaro fight a duel, in which Don Alvaro thinks he has killed his opponent. In expiation, Don Alvaro vows to enter a monastery.

ACT IV. Don Alvaro has entered the monastery at Hornachuelos, near which is Leonora’s cave, under the name of Father Raphael. Don Carlo arrives cured of his wound and forces him to fight. They chose the ground before Leonora’s cave; and Don Carlo is mortally wounded. Alvaro calls for help, and Leonora recognizing his voice rushes out, and seeing her brother dying, stoops over him; he thereupon stabs her to the heart. Don Alvaro flings himself to death from some rocks, before the monks arrive singing the Miserere.

References and external links: Plot taken from The Opera Goer's Complete Guide by Leo Melitz, 1921 version.