Kolding  Kolding () is a Danish seaport located at the head of Kolding Fjord in the Region of Southern Denmark. It is the seat of Kolding Municipality. It is a transportation, commercial, and manufacturing centre, and has numerous industrial companies, principally geared towards shipbuilding. The manufacturing of machinery and textiles and livestock export are other economically significant activities. With a population of 90,066 (1 January 2014), the Kolding municipality is the seventh largest in Denmark. The city itself has a population of 61,121 (1 January 2020) and is also the seventh largest city in Denmark. The city is part of the Triangle Region, which includes the neighbouring cities of Fredericia and Vejle. In the Battle of Kolding, fought on 25 December 1658, the allied Polish and Danish forces under hetman Stefan Czarniecki defeated the Swedish forces of Charles X Gustav of Sweden. A battle between German and Danish forces took place near the town on 23 April 1849 during the First War of Schleswig. On 3 November 2004, the N. P. Johnsen's Fireworks Factory in the suburb of Seest exploded. One firefighter died, 85 people were injured, and around 2000 people were evacuated and some of them lost their homes during this disaster in this suburb of Kolding. Located in Kolding is the former royal castle of Koldinghus. This was built in the 13th century by King Eric Klipping and is now a museum with certain parts of the castle, including its chapel and hall, being used for governmental ceremonial events. It was the last royal residence in Jutland. Another notable site is the 13th century stone Church of Saint Nicholas (), which is one of the oldest in Denmark. Popular tourist attractions include the Trapholt art museum and the gardens Geografisk Have. Trapholt holds collections of Danish arts from 1900 onwards and a smaller number of non-Danish exhibits. Kolding is also the site of Designskolen Kolding, a university design school. The municipal museum, the Museet på Koldinghus, is located in the castle and former royal palace. It has a collection of Danish art from the late Middle Ages to the 1940s, miscellaneous artefacts of local interest, and an extensive collection of items in gold and silver. The Trapholt art museum features many pieces from mainly Danish artists, along with a large collection of chairs. Also Kolding houses the Danish Museum of Nurses () which is situated in the former reception building of the former tuberculosis sanatorium for children.