Sindermann was born in a traditional family in Dresden as the son of the Saxon Social Democratic politician Karl Sindermann. His older brother, Kurt Sindermann, also entered politics as a member of the See more

After the war, Sindermann returned to Saxony and joined the KPD. After 1946 he was a member of the Socialist Unity Party (SED), created in April 1946 from the forced merger of Communists and Social Democrats in the Soviet Occupation Zone.
Sindermann worked … See more

His stepson was the actor Peter Sindermann. His grandson is the handball player and fashion designer Eric Sindermann. See more

• Chinas großer Sprung (= Internationale Reihe). Dietz-Verlag, Berlin 1959
• Erfolgreich voran auf dem Kurs des VIII. Parteitages: … See more

In 1971, he became Deputy chairman of the Council of Ministers—i. e., deputy prime minister of East Germany. Two years later, he … See more

Sindermann remained in these positions until the peaceful revolution, during which he resigned from all offices in November 1989. In a desperate attempt to change its image, the Party of Democratic Socialism (PDS), the renamed SED, expelled him in December. See more

• Helmut Müller-Enbergs, Bernd-Rainer Barth: Sindermann, Horst. In: Wer war wer in der DDR? 5. Ausgabe. Band 2. Ch. Links, Berlin 2010.
• Hermann Wentker: Sindermann, Horst Herbert. In: Neue Deutsche Biographie (NDB). Band 24, Duncker & Humblot, … See more