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Hans-Hartwig Trojer

German World War II U-boat commander
The basics
Occupation Korvettenkapitän Submariner
Date of birth Transylvania
Date of death Sep 27, 1943 Atlantic Ocean
Authority VIAF id
The details

Hans-Hartwig Trojer (22 January 1916 – 27 September 1943) was a German U-Boat commander in World War II. He was also a recipient of the Knight's Cross of the Iron Cross, awarded by Nazi Germany for extreme battlefield bravery or successful military leadership.

Naval career

He joined the Kriegsmarine in April 1936. In 1938 he joined the U-boat service, and spent his first two years as watch officer on the U-34 and U-67.

After completing his commander training, Trojer was promoted to Oberleutnant zur See and took command of the U-3. In March 1942 he was assigned to command the new Type VIIc boat U-221. He sank six ships for a total of 29,682 gross register tons (GRT) on his first patrol and he and his crew earned a mention in the Wehrmachtbericht for this. On his third patrol he was informed by a radio message that he had received the Knights cross. On 1 April 1943 he received a promotion to Kapitänleutnant.

Hans-Hartwig Trojer was killed when U-221 was sunk with all hands by a British Halifax bomber south of Ireland on 27 September 1943.


  • U-boat War Badge (1939) (12 November 1939)
  • Iron Cross (1939)
    • 2nd Class (7 February 1940)
    • 1st Class (5 August 1940)
  • Knight's Cross of the Iron Cross on 24 March 1943 as Oberleutnant zur See and commander of U-221
  • Mentioned in the Wehrmachtbericht on 14 October 1942
  • ^ Busch & Röll 2003, p. 326.
  • Scherzer 2007, p. 751.

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