Titta Ruffo, born as Ruffo Cafiero Titta, was an Italian operatic baritone who had a major international singing career. Known as the "Voce del leone", he was greatly admired, even by rival baritones,

Giuseppe De Luca, was an Italian baritone who achieved his greatest triumphs at the Metropolitan Opera in New York City. He notably created roles in the world premieres of two operas by Giacomo Puccin