 Thus he adopted his mother's maiden name Camargo as a middle name, and thenceforth signed himself M. Camargo Guarnieri.In 1948, he legally changed his name to Mozart Camargo Guarnieri, but continued to sign only the initial of his first name.One of his brothers was named Rossine (a Portuguese misspelling of Rossini) Guarnieri, another one Verdi Guarnieri.