Robert Danneberg was an Austrian politician, a member of the Social Democratic Workers Party of Austria (SDAPÖ) and a prominent Austro-Marxist theoretician. Danneberg was one of the architects of Red Vienna and he was killed in the Auschwitz concentration camp in 1942.
Portrait of Danneberg by Georg Fayer
Danneberg's tombstone
Labour and Socialist International
The Labour and Socialist International was an international organization of socialist and labourist parties, active between 1923 and 1940. The group was established through a merger of the rival Vienna International and the Berne International, and was the forerunner of the present-day Socialist International.
Arthur Henderson (1863–1935) of the British Labour Party was chosen as the first chairman of the executive committee of the LSI in 1923.