found: Puccini, G. Madama Butterfly [SR] 1983?, p1967:container (Carlo Bergonzi, tenor)
found: New Grove dict. of opera(Bergonzi, Carlo; b. 7-13-24, Polisene, near Parma; Italian tenor)
found: New York times (online), viewed July 28, 2014(in obituary published July 26: Carlo Bergonzi; b. July 13, 1924, Vidalenzo; d. Friday [July 25, 2014], Milan, aged 90; one of the 20th century's most distinguished operatic tenors, renowned for the refined interpretive taste and keen musical intelligence he brought to his art)
found: Italian Wikipedia, viewed July 28, 2014(Carlo Bergonzi; b. July 13, 1924, Polesine Parmense [in the article on Polesine Parmense, Vidalenzo is listed as a frazione of that municipality]; d. July 25, 2014, Milan)