Stefan Heym, author of Schwarzenberg

Helmut Flieg (April 10, 1913 - December 16, 2001) was a German-Jewish writer, known by his pseudonym Stefan Heym. He lived in the United States (or served in its army abroad) between 1935 and 1952, before moving back to the part of his now-partitioned native Germany which was the German Democratic Republic (GDR, "East Germany"). He published works in English and German at home and abroad, and despite longstanding criticism of the GDR remained a committed socialist.Helmut Flieg (April 10, 1913 - December 16, 2001) was a German-Jewish writer, known by his pseudonym Stefan Heym. He lived in the United States (or served in its army abroad) between 1935 and 1952, before moving back to the part of his now-partitioned native Germany which was the German Democratic Republic (GDR, "East Germany"). He published works in English and German at home and abroad, and despite longstanding criticism of the GDR remained a committed socialist.