Maria Caterina Negri . Operatic contraltos

Artist Data: Wikipedia: https://en.wikipedia.org/wiki/Ottilie_Metzger-Lattermann

Artist Data: Marietta Alboni was born 1826-03-06. Marietta Died: 1894-06-23….

Artist Data: Wikipedia: https://en.wikipedia.org/wiki/Magda_Spiegel

Artist Data: Irra Petina was born 1908-04-18. Irra Died: 2000-01-19….