Biesdorf was mentioned for the first time in a document of 1375, the "Landbuch" (land book) of Charles IV, with its ancient names Bysterstorff and/or Bisterstorff. Until 1920 it was a municipality of the former Niederbarnim district, merged in Berlin with the "Greater Berlin Act", and part of Lichtenberg district until 1933. From 1949 to 1990, during the "Cold War", it was part of East Berlin.[2] At the end of May / beginning of June 1945, 36 houses in Biesdorf were confiscated from senior officials from authorities and cultural institutions, and several properties were returned in October 1946. The first mayor of post-war Berlin, Arthur Werner, who was deployed by the Soviets on May 17, 1945, moved into his official residence here. During the same period, parts of Biesdorf (Dillinger Weg, Frankenholzer Weg, Püttlinger Straße) were confiscated for the Red Army and separated from the remaining parts by a wooden wall. The Red Army moved into quarters there and in the former forced labor camp (Frankenholzer Weg). It was only in the 1950s that the Soviet Armed Forces left the houses in Biesdorf. The site of the former forced labor camp was later taken over by the National People's Army and stationed there by the Erich-Weinert-Ensemble, an institution of the Ministry of National Defense of the GDR, in breach of the Four Powers Agreement. The Biesdorf mansion was confiscated by the Soviet Armed Forces, and a mourning hall for fallen or deceased Soviet soldiers was set up in the rooms, but at times the rooms were also used for other types of celebrations such as medals' awarding and May 1. The dead soldiers were temporarily buried in the estate park, after the Soviet army moved out, the dead were then transferred to Soviet military cemeteries.