0
Siegfried Bernfeld died on November 27, 1980, in New York, USA.
Siegfried Bernfeld was born on July 17, 1901, in Vienna, Austria-Hungary, now Austria.
Siegfried Lowitz's birth name is Siegfried Wodolowitz.
Siegfried Jerusalem's birth name is Siegfried Salem.
John Siegfried's birth name is Siegfried Otto Speck.