Otto Braun

German politician, born in Königsberg, Prussia (now Kaliningrad, Russia). A member of the Sozialdemokratische Partei Deutschlands Vorstand from 1911, he became member of the Prussian House of Deputies (1913) and the Weimar Nationalversammlung (1919–20). He was a member of the Reichstag and held the office of Prussian prime minister (1920–33, except 1921 and 1925), when he was known as the Red Tsar of Prussia. After defeat at the polls and the Reichsregierungsputsch of von Papen in 1932, which paved the way for Hitler's rise to power, he emigrated to Switzerland in 1933.

Otto Braun (28 January 1872 - 14 December 1955) was a German Social Democratic politician who was Prime Minister of Prussia. It was overthrown in a coup in July 1932 by the national government of Franz von Papen.

Preceded by: Paul Hirsch	Prime Minister of Prussia 1920–1921	Succeeded by: Adam Stegerwald
Preceded by: Adam Stegerwald	Prime Minister of Prussia 1921–1925	Succeeded by: Wilhelm Marx
Preceded by: Wilhelm Marx	Prime Minister of Prussia 1925–1932	Succeeded by: Franz von Papen

Prime Ministers of Prussia (1848-1945)

Adolf Heinrich Graf von Arnim-Boitzenburg | Rudolf von Auerswald | Ernst von Pfuel | Friedrich Wilhelm Graf von Brandenburg | Adalbert von Ladenberg (interim) | Otto Theodor Freiherr von Manteuffel | Otto von Bismarck | Albrecht Graf von Roon | Otto von Bismarck | Leo Graf von Caprivi | Bernhard von Bülow | Georg Graf von Hertling | Max Prinz von Baden |