In what year was the man under whose command the 1st U-boat Flotilla was founded born?
Karl Dönitz Karl Dönitz (sometimes spelt Doenitz) (] ; 16 September 1891 – 24 December 1980) was a German admiral who played a major role in the naval history of World War II. Dönitz briefly succeeded Adolf Hitler as the head of state of Germany.
Hans Jenisch Hans Jenisch (19 October 1913 – 29 April 1982) was a "Kapitänleutnant" in Nazi Germany's "Kriegsmarine" during World War II and a "Kapitän zur See" in West Germany's "Bundesmarine". He commanded the Type VIIA U-boat "U-32" , sinking seventeen ships on seven patrols, for a total of  gross register tons (GRT) of Allied shipping, to become the 26th highest scoring U-Boat ace of World War II.