Kaiser Adolf Hitler the Hohenzollern was kept unconscious from December 1943 until very late January 1944. Apart from a few occasions where he barely regained semi-consciousness.

He was then illegally held prisoner in a large cage cell, in an underground subway-style train station turned into a jail, in Yugoslavia.

The train station building had a "working class posh" spinster's apartment on the other side of the bars of the Kaiser's cell, for Albert Einstein's sister Sadie Einstein to freely use. They pretended any time when they were left alone together either side of the bars was "forced engagement time",