Günther Prien

Günther Prien (16 January 1908 – presumed 8 March 1941) was a German U-boat commander during World War II. He was the first U-boat commander to receive the Knight's Cross of the Iron Cross and the first member of the ''Kriegsmarine'' to receive the Knight's Cross of the Iron Cross with Oak Leaves of Nazi Germany. It was Germany's highest military decoration at the time of its presentation to Prien.|group="Note"}}

Under Prien's command, the submarine was credited with sinking over 30 Allied ships totalling about , along with the British battleship at anchor in the Home Fleet's anchorage in Scapa Flow. Provided by Wikipedia