Isidor Springer

Isidore Springer (23 July 1912 in Antwerp, 27 December 1942 in Lyon, France) was a Belgian diamond dealer and communist who became an important member of the Red Orchestra organisation in Belgium and later France during World War II. Springer worked as a recruiter and courier between Leopold Trepper, a Soviet agent who was the technical director of Soviet espionage in Western Europe, and Anatoly Gurevich, also a Soviet agent, in Belgium. He would later run the 6th network of Trepper's seven espionage networks in France, providing intelligence from US and Belgian diplomats. His aliases were Romeo, Verlaine, Walter van Vliet, Fred and Sabor. He was also as a recruiter and a courier between Gurevich in Brussels and Trepper in Paris. His wife Flore Valaerts was sent to Plötzensee Prison where she was guillotined on 20 August 1943. She had received the death sentence as she has used her dance class in Rue Royale in Brussels as a mail drop for the espionage network.