German_submarine_U-331--Ernst-Johann_Tetsch

German submarine U-331 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II, famous for sinking the battleship HMS Barham.
The submarine was laid down on 26 January 1940 at the Nordseewerke yard at Emden, launched on 20 December 1940, and commissioned on 31 March 1941 under the command of Oberleutnant zur See Hans-Diedrich Freiherr von Tiesenhausen. She was tracked by the RAF and crippled before being destroyed by the Royal Navy Fleet Air Arm on 17 November 1942 with the loss of most of her crew.