SONDERBORG

port and seaside resort, Snderjylland amtskommune (county), Denmark, on the southwestern coast of Als Island. It was founded in the mid-13th century around Snderborg Castle and chartered in 1461. King Christian II was a prisoner at the castle 153249. The city was razed in 1864 during a Prussian assault on Danish trenches near Dybbl nearby Dybbl Mill, site of heroic Danish resistance, became a symbol of national unity. It passed to Germany and, as a part of the North Slesvig region, was restored to Denmark by a plebiscite in 1920. Snderborg Castle now houses a museum. The city's chief products are textiles, machinery, furniture, chemicals, margarine, and beer. Pop. (1981) city, 26,885; (1982 est.) mun., 27,867.