Otto Kretschmer was a German naval officer and submariner in World War II and the Cold War.
A Type IIB U-boat similar to U-23
Kapitänleutnant Kretschmer receiving his Knight's Cross from the hands of Großadmiral Erich Raeder, August 1940
Flotillenadmiral Kretschmer in 1966
Hans-Diedrich von Tiesenhausen was a German naval commander during World War II. He was a recipient of the Knight's Cross of the Iron Cross of Nazi Germany.
HMS Barham exploding, 25 November 1941.