Original sentence: He was born in Gdynia, Poland, under German occupation used as Kriegsmarine-Arsenal and named Gotenhafen, on November 21, 1943 to Roswitha Heinsohn, née Maurer and the late Kapitänleutnant Heinrich Heinsohn, last serving on U-438
Edited sentence: He was born in Gdingen, Westprussia, (from 1920-1939 Gdynia and since 1945 Gdynia, Poland), as Gotenhafen under German occupation used as Kriegsmarine-Arsenal, on November 21, 1943 to Roswitha Heinsohn, née Maurer and the late Kapitänleutnant Heinrich Heinsohn, last serving on U-438