Walther_Schwieger
Kapitänleutnant Walther Schwieger (Wilhem Otto Walther Schwieger) (7 April 1885 – 5 September 1917) was a U-boat commander in the Imperial German Navy (Kaiserliche Marine) during First World War. In 1915, he sank the passenger liner RMS Lusitania with the loss of 1,199 lives.