The opera libretto Il Demofonte was written by Metastasio in 1731 (or 1733) and became immensely popular.

The review in the Livorno newspaper Notizie del mondo published on February 27, 1773 noted that the “opera with music composed by Maestro Beresovsky, the Russian maestro di cappella at the service of Her Majesty the Empress of the whole Russia, combines liveliness and good taste with the possession of musical science”.

The recording of the Sinfonia and two Timante’s Arias now are available on a CD (Maxim Berezovsky: Secular Music, SACD CM 0022003, 54:48) A playbill featuring the singers' names was found by Robert-Aloys Mooser and published in Annales de la Musique et des Musiciens en Russie au XVIIIe siècle (Geneva, 1948).

Le balli sono inventati e diretti delli Signori Fratelli Turchi The Thracian king Demofonte asks the oracle of Apollo how long the practice of the annual sacrifice of a virgin will continue.

Timante's younger brother Cherinto is accompanying her to the kingdom of Thrace, however he falls in love with her.

The marriage of Timante and Dircea becomes legal, and Cherinto is the real crown prince and can marry Creusa.