This was an early post on theleansubmariner (2011) that has been updated with new content and pictures. 100 years ago, the Germans experimented with the first commercial submarine Deutschland commanded by Captain Paul Koenig. König was a captain in the German merchant navy. In 1916 during World War I, he became a reserve Kapitänleutnant in the Imperial German Navy.

Later in 1916, König became commanding officer of the merchant submarine Deutschland. He took it on two patrols to the United States for commercial purposes. He arrived at Baltimore on July 10, 1916, with a cargo of dyestuffs. While in the United States he was interviewed by newspapermen, was even the recipient of vaudeville offers, was welcomed by mayor of Baltimore and officials. On August 2 he sailed on the return voyage, later making a second voyage and putting in at New London, Connecticut.

He received the Iron Cross 1st class the same year. Following his return after the second journey, König wrote a book called Voyage of the Deutschland, which was heavily publicized, as it was intended to be used as propaganda.

König then became commanding officer of a Sperrbrechergruppe (group of blockade runners; 1917), and later was an executive at Norddeutscher Lloyd (1919–1931). He died at Gnadau, on September 9, 1933, where he is buried.