Frederikshavn (originally named Fladstrand) is a Danish town in Frederikshavn municipality, Region Nordjylland on the northeast coast of the Jutland peninsula in northern Denmark. Its name translates to "Frederik's harbour". Ferry service connects the town of Frederikshavn to the cities of Oslo and Larvik in Norway, Göteborg, Sweden and to Læsø. Frederikshavn has a population of 43,600 (2007), and is an important traffic portal with its ferry connections to Sweden and Norway. The city is also well known for fishing, and its fishing and industrial harbours. The Danish term "frederikshavner" (lit. "Someone from Frederikshavn") is used to denote a quality plaice fish, probably the most popular eating fish in Denmark. Frederikshavn's oldest building, Fiskerklyngen, is originally from the mid-1500s, but the houses now there are from 1700s–1800s. Big business in the area include MAN/BW Alpha, Martin, as well as the Navy Base Frederikshavn (Flådestation Frederikshavn), which is the home location for the training ship Danmark, the national icebreakers, and the royal yacht Dannebrog. Also AC-REN is a large employer in the area. Frederikshavn has, like the rest of North Jutland, been hit with hard unemployment. The city's largest workplace, the shipyard Danyard, closed in the late 1990s. This resulted in more than 2,000 workers being unemployed. Today there is still activity at the large ship building area, with many small companies renting space there.