Fregattenkapitän, short: FKpt / in lists: FK, is the middle senior officer rank in the German Navy / armed forces of Germany (Bundeswehr).
Fritz Frauenheim (9 January 1912 – 28 September 1969) was a German U-boat commander of the Second World War.
German (Deutsch) is a West Germanic language that is mainly spoken in Central Europe.
Kapitänleutnant, short: KptLt / in lists: KL, (Lang-en: Captain lieutenant) is an officer grade of the captains military hierarchy group of the German Bundeswehr.
Szczecin (German and Swedish Stettin), known also by other alternative names) is the capital and largest city of the West Pomeranian Voivodeship in Poland. Located near the Baltic Sea and the German border, it is a major seaport and Poland's seventh-largest city. As of June 2011, the population was 407,811. Szczecin is located on the Oder, south of the Szczecin Lagoon and the Bay of Pomerania. The city is situated along the southwestern shore of Dąbie Lake, on both sides of the Oder and on several large islands between the western and eastern branches of the river. Szczecin is adjacent to the town of Police and is the urban centre of the Szczecin agglomeration, an extended metropolitan area that includes communities in the German states of Brandenburg and Mecklenburg-Vorpommern. The city's recorded history began in the 8th century as a Slavic Pomeranian stronghold, built at the site of the Ducal castle. In the 12th century, when Szczecin had become one of Pomerania's main urban centres, it lost its independence to Piast Poland, the Duchy of Saxony, the Holy Roman Empire and Denmark. At the same time, the House of Griffins established themselves as local rulers and the population was Christianized. After the Treaty of Stettin in 1630, the town came under the control of the Swedish Empire and became in 1648 the Capital of Swedish Pomerania until 1720, when it was acquired by the Kingdom of Prussia and then the German Empire. Following World War II Stettin became part of Poland, resulting in expulsion of the German population. Szczecin is the administrative and industrial centre of West Pomeranian Voivodeship and is the site of the University of Szczecin, Pomeranian Medical University, Maritime University, West Pomeranian University of Technology, Szczecin Art Academy, and the see of the Szczecin-Kamień Catholic Archdiocese. From 1999 onwards, Szczecin has served as the site of the headquarters of NATO's Multinational Corps Northeast. Szczecin was a candidate for the European Capital of Culture in 2016.
U-boat is an anglicised version of the German word U-Boot, a shortening of Unterseeboot, literally "undersea boat".