Marcella Sembrich (1858 - 1935) Pologne Marcella Sembrich (February 15, 1858 – January 11, 1935) was the stage name of the Polish coloratura soprano, Prakseda Marcelina Kochańska. She had an important international singing career, chiefly at the New York Metropolitan Opera and the Royal Opera House, Covent Garden, London. (Hide extended text)...(Read all) Source : Wikipedia