Bertha Schwarz
German opera singer
Bertha Schwarz, often known by her stage name Bianca Bianchi, was a German coloratura soprano opera singer of the late 19th century. Her greatest successes were at Vienna. Wikipedia
Born: January 28, 1855, Heidelberg, Germany
Died: February 16, 1947 (age 92 years), Salzburg, Austria
Partner: Bernhard Pollini (1897–)