|Born||22 January 1916|
|Died||27 September 1943(aged 27)|
|Place of birth||Birthähn, Siebenbürgen|
|Place of death||
North Atlantic south of Ireland|
|Years of service||1936–1943|
|Awards||Knight's Cross of the Iron Cross|
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 (German language: Ritterkreuz des Eisernen Kreuzes). The Knight's Cross of the Iron Cross was awarded to recognise extreme battlefield bravery or successful military leadership.
He joined the Kriegsmarine in April 1936 and was a member of the Olympia crew. Because he had been born in Transylvania, he was nicknamed Count Dracula by his comrades. 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 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)
- 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
|Date||Original German Wehrmachtbericht wording||Direct English translation|
|Wednesday, 14 October 1942||Bei den Geleitzugkämpfen im Nordatlantik hat sich das Unterseeboot des Oberleutnants zur See Trojer besonders ausgezeichnet, das aus einem Geleitzug acht Schiffe mit 47 000 BRT herausschoß.||In the convoy battles in the North Atlantic, the submarine of First Lieutenant at Sea Trojer was particularly successful, which shot out of a convoy eight vessels with 47 000 GRT.|
- Busch and Röll 2003, p. 326.
- Scherzer 2007, p. 751.
- Die Wehrmachtberichte 1939–1945 Band 2, p. 321.
- Busch, Hans-Joachim; Röll (2003) (in German). Der U-Boot-Krieg 1939–1945 — Die Ritterkreuzträger der U-Boot-Waffe von September 1939 bis Mai 1945 [The U-Boat War 1939–1945 — The Knight's Cross Bearers of the U-Boat Force from September 1939 to May 1945]. Hamburg, Berlin, Bonn Germany: Verlag E.S. Mittler & Sohn. ISBN 978-3-8132-0515-2.
- Fellgiebel, Walther-Peer (2000) (in German). Die Träger des Ritterkreuzes des Eisernen Kreuzes 1939–1945 – Die Inhaber der höchsten Auszeichnung des Zweiten Weltkrieges aller Wehrmachtsteile [The Bearers of the Knight's Cross of the Iron Cross 1939–1945 — The Owners of the Highest Award of the Second World War of all Wehrmacht Branches]. Friedburg, Germany: Podzun-Pallas. ISBN 978-3-7909-0284-6.
- Kurowski, Franz (1995). Knight's Cross Holders of the U-Boat Service. Atglen, PA: Schiffer Publishing. ISBN 978-0-88740-748-2.
- Range, Clemens (1974). Die Ritterkreuzträger der Kriegsmarine [The Knight's Cross Bearers of the Navy]. Stuttgart, Germany: Motorbuch Verlag. ISBN 978-3-87943-355-1.
- Scherzer, Veit (2007) (in German). Die Ritterkreuzträger 1939–1945 Die Inhaber des Ritterkreuzes des Eisernen Kreuzes 1939 von Heer, Luftwaffe, Kriegsmarine, Waffen-SS, Volkssturm sowie mit Deutschland verbündeter Streitkräfte nach den Unterlagen des Bundesarchives [The Knight's Cross Bearers 1939–1945 The Holders of the Knight's Cross of the Iron Cross 1939 by Army, Air Force, Navy, Waffen-SS, Volkssturm and Allied Forces with Germany According to the Documents of the Federal Archives]. Jena, Germany: Scherzers Miltaer-Verlag. ISBN 978-3-938845-17-2.
- (in German) Die Wehrmachtberichte 1939–1945 Band 2, 1. Januar 1942 bis 31. Dezember 1943 [The Wehrmacht Reports 1939–1945 Volume 2, 1 January 1942 to 31 December 1943]. München, Germany: Deutscher Taschenbuch Verlag GmbH & Co. KG. 1985. ISBN 978-3-423-05944-2.
- Hans-Hartwig Trojer on uboat.net
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