From about 1900 the mansion colony of '' Neubabelsberg '' arose east of Babelsberg Park on the southern shore of the Griebnitzsee lake . After the Universum Film AG ( UFA ) in 1922 had acquired a large backlot nearby , these villas built by famous architects like Hermann Muthesius and Ludwig Mies van der Rohe became popular residences of numerous film stars . Marika Rökk , Sybille Schmitz , Lilian Harvey , Willy Fritsch and Brigitte Horney lived and worked here when film production by the UFA continued without a break in the Nazi period , while many Jewish actors and directors were dispossessed and had to flee from Germany . In 1938 Nowawes and Neubabelsberg merged and were incorporated into Potsdam one year later , becoming the district of Potsdam-Babelsberg . During the 1945 Potsdam Conference the representatives of the victorious Allies Joseph Stalin , President Harry S. Truman and Prime Minister Winston Churchill ( succeeded by Clement Attlee ) resided in mansions of Neubabelsberg . At the " Truman-Villa " the President issued the Potsdam Declaration and gave orders for the atomic bombings of Hiroshima and Nagasaki . Today the building serves as the seat of the liberal Friedrich Naumann Foundation
Potsdam Conference
Potsdam Conference
Babelsberg