Previously, in 1900, his name was Günter Prien and he lived in Nazi Germany as the commander of the submarine U-47. He was an outstanding German submariner of the Second World War, holder of the "Knight's Cross with Oak Leaves". Prien was one of the most successful submariners in the Kriegsmarine and was known by the nickname "Bull of Scapa Flow", received after a successful operation to penetrate the raid of the "British fleet" in the harbor. He prefers to call himself the Captain.