Claim: In I due Foscari, the role of Francesco Foscari, Doge of Venice was played by Achille De Bassini in a baritone voice, the role of his son, Jacopo Foscari was played by Giacomo Roppa in a tenor voice, and the role of Lucrenzia Contarini was played by Marianna Barbieri-Nini in a soprano voice.
Evidence: Francesco Foscari, Doge of Venice Achille De Bassini baritone Jacopo Foscari, his son Giacomo Roppa tenor Lucrezia Contarini, Jacopo Foscari's wife Marianna Barbieri-Nini soprano