Mieczyslaw (Moisei) Samuilovich Weinberg

Mieczysław Weinberg was a Polish, Soviet, and Russian composer and pianist. Born in Warsaw to parents who worked in the Yiddish theatre in Poland, his early years were surrounded by music. At the age of 12, he began formal music lessons. Later, he studied piano at the Warsaw Conservatory. In 1939, Weinberg fled Warsaw when Germany invaded Poland and started World War II. His family was later murdered at the Trawniki concentration camp.

Read more at https://en.wikipedia.org/wiki/Mieczysław_Weinberg