55.0729, 17.4213
MV Wilhelm Gustloff was a German military transport ship which was sunk on 30 January 1945 by Soviet submarine S-13 in the Baltic Sea while evacuating civilians and military personnel from East Prussia and the German-occupied Baltic states, and German military personnel from Gotenhafen (Gdynia) as the Red Army advanced. By one estimate, 9,400 people died, making it the largest loss of life in a single ship sinking in history.
Originally constructed as a cruise ship for the Nazi Strength Through Joy (Kraft durch Freude) organization in 1937, Wilhelm Gustloff had been requisitioned by the Kriegsmarine (German navy) in 1939. She served as a hospital ship in 1939 and 1940. She was then assigned as a floating barracks for naval personnel in Gotenhafen before being fitted with anti-aircraft guns and put into service to transport evacuees in 1945.