city, Vestsjaelland amtskommune (county), northwestern Sjaelland (Zealand), Denmark, situated on Kalundborg Fjord. A favourite royal seat in the European Middle Ages (chartered 1485), its castle was a frequent meeting place for the Danehof (national assembly). The castle in later times became a state prison, where Christian II was confined (1549-59) by Christian III; it was razed by the Swedes in 1658. Vor Frue Kirke (church; c. 1170) is a unique landmark, the ground plan being in the form of a Greek cross, with five towers. There is also a historical museum. The city has a sheltered harbour and berths for various ferry services; economically significant industries include meat-packing, shipbuilding, oil refining, and the manufacture of machinery and chemicals. Pop. (1988 est.) city, 15,419; (1990 est.) mun., 19,321.
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