Il giuramento

19th century After the mid-19th century, the opera dropped in popularity and by 1900 it had, “virtually disappeared”. 20th century and beyond Occasional performances have been given in modern times, beginning with revivals in the 1950s. 1970s The opera was presented at the Festival dei Due Mondi in Spoleto in June 1970 with Thomas Schippers conducting. German conductor Gerd Albrecht gave a concert performance in Berlin in 1974 and three further performances in 1979, one of which was recorded. 1980s It was given at the Festival della Valle d'Itria in Martina Franca, Italy, in the summer of 1984, conducted by Bruno Campanella; this too was recorded and made available on CD. There were four staged performances given by the Angers-Nantes Opéra in France in November 1993, conducted by Giuliano Carella. It was also performed at the Wexford Festival Opera in December 2002 under Paolo Arrivabeni. The Washington Concert Opera in the US capital presented a concert version in May 2009 with Antony Walker conducting. ==Roles==

Setting: Syracuse Time: 14th century ;Act 1: Bianca has been married against her will to Count Manfredo, although she is secretly in love with an unknown knight. Elaisa, a young woman in search of the daughter of her benefactor, and Viscardo arrive in the city. The disgraced courtier Brunoro discovers that Viscardo is the knight loved by Bianca. He tells Elaisa in order to make her jealous but she finds out that Bianca was the very woman she had been looking for. ;Act 2: The count suspects Bianca of infidelity and locks her in the family tomb, intending to poison her. But Elaisa, who is loved by the count, manages to substitute a strong narcotic for the poison. ;Act 3: Viscardo believes that Elaisa is responsible for Bianca's death and stabs her just as Bianca wakes from her deep sleep. ==Recordings==