Claim: Titta Ruffo born 1877 in Pisa was an Italian operatic baritone and was the son of an engineer.
Evidence: Titta Ruffo (9 June 1877 – 5 July 1953), born as Ruffo Cafiero (double forename) Titta, was an Italian operatic baritone who had a major international singing career. Born Ruffo Titta in Pisa (he reversed his forename and surname for the stage), Ruffo was the son of an engineer. Ruffo Titta Cafiero
(1877-09-09)9 September 1877
Pisa, Italy