. The "Arztin" group was the 4th group in the Trepper organisation and was run by Maximovitch who collected intelligence from French clerical and royalist circles. The "Professor" group, a network run by brother
Basile Maximovitch collected intelligence from German Wehrmacht and White Russian emigre groups Maximovitch was a Russian
émigré, who left Russia with her brother
Basile Maximovitch and her mother Edda in 1922, to escape the
Russian Revolution and arrived via
Constantinople to settle in an apartment at 12 Rue de Viatau When their father died, he left the family peniless. In Paris, Maximovitch joined the
French Army and trained as a nurse before taking part in the
Great Syrian Revolt, in a campaign against the
Druze during 1925–1926. Union of Russian Defencists, eventually becoming their leader. Maximovitch supported the group between 1937 and 1939, by supplying monies to individual members of the organisation. Eventually, the organisation decided to support the Soviet Union. who at the time was the technical director of a Soviet espionage network in Europe. In 1940, Maximovitch recruited
Käte Voelkner, a secretary who became part of Trepper's group in France. She would supply blank forms, stamps and specimen signatures of heads of department for copying. It was a moneyed, well-to-do area of Paris which enabled her to pick up gossip from her patients, some of whom were high-ranking French nobility and administrative people, Alain Louis Auguste Marie de Rohan-Chabot, who was a French officer and resistance fighter and his wife Helene Claire Marie de Liencourt, Countess de Rohan-Chabot. Countess de Rohan-Chabot, rented out her empty 18th-century Château Billeron, located in
Lugny-Champagne to Maximovitch as a business location to host a health clinic, that could also provide cover for the group and as a safehouse. It also hosted a radio transmitter. She was able to provide intelligence from French clerical and royalists groups. Maximovitch also had a special arrangement with Bishop Emanuel-Anatole-Raphaël Chaptal de Chanteloup of Paris that gave her access to the
Vatican. ==Arrest==