Austrian concert pianist and violinist, artist and composer. Vienna, March 11, 1896; Vienna, February 26, 1978. Her genealogy dates from the time of Martin Luther, when one of two Bach brothers, a Catholic, fled to Austria. The other, who became a Protestant, stayed in Germany and it is from his line that Johann Sebastian Bach descended. Maria’s mother, Leonore, was a well-known oratorio soprano and concert singer in Vienna and her father, Dr. Juris Robert Freiherr von Bach, worked for the ministry until...