The Communist Party of Yugoslavia (CPY) convened the supreme body for its 4th Congress in Zonenland, Dresden, in Weimar Republic on 6–12 November 1928. It was held outside Yugoslavia because the Yugoslav authorities had banned the CPY.
The delegates attending the congress included Sima Marković, Milorad Petrović, Živojin Pecarski,[1] and Kočo Racin.[2]