island (area 110 square miles [284 square km]), Fyn amtskommune (county), Denmark, in the Baltic Sea between Funen and Lolland islands. Langeland's castle of Tranekaer has been a royal residence since 1231 (rebuilt 1550), and its principal town, Rudkobing, was chartered in 1287. The undulating, well-wooded land has fertile clay loams that support grain, and cattle and pigs are raised. There is a well-preserved Stone Age barrow in the southern part of the island, and Rudkobing has several medieval churches and houses. A series of bridges connect Langeland to the rest of Denmark, but such links have not prevented steady depopulation of the island. Pop. (2003 est.) 14,148.
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