Communist, newspaper proprietor
He joined the Communist Party in 1919 and was elected to its its Central Committee in 1924. Münzenberg was an influential proprietor and publisher of several newspapers, for which Institute staff members wrote articles. He thus gave them access to the Leftwing press.(Educational Work)
In 1926, he lived with his wife Babette Gross at the Institute. His flat at the Institute was used by the Comintern (Communist International) for illegal meetings.
In 1933, he emigrated to France and died there in 1940. The circumstances of his death are still unclear.