Four-Power Authorities of Germany. Both were in West Berlin, Germany, and existed during the Cold War from 1948 to 1989. These were the Berlin Air Safety Center and Spandau Prison (which was demolished in 1987 when Rudolf Hess, the sole remaining prisoner, died). These two organizations were uniquely four-powered in that American, British, French, and Soviet authorities cooperated in their management. This was a far cry from the intensely adversarial relations the allies had with the Warsaw Pact leader in almost every other aspect of world affairs during this time. Both organizations remained low-profile and secretive during their existences to avoid highlighting
Spandau Citadel of the British sector. Despite its history as a prison, the Citadel was not used to hold National Socialist war criminals. Rather, they were housed at Spandau prison in the same Berlin borough. The citadel is composed of different buildings all related to defence or representative housing. The gate house with a draw bridge used to hinder attackers to enter the citadel. The Gothic hall building palace was used as residential building. In the bastion Königin, 70 medieval gravestones were found bearing witness of Jewish life in the important trade town and the function of the citadel as a refuge.