Schloss Hamborn is a castle complex of about 300 hectares in the borough of Borchen (district Paderborn) in North Rhine-Westphalia. The complex consists of a main building, built of natural stone and featuring elements of the Weser Renaissance, as well as numerous former farm buildings that extend across the extensive grounds. The castle Hamborn is in the local situation Castle Hamborn the Borchener district Kirchborchen on the limestone ridge of the Schossberg at / German Grundkarte 1: 5000 and is located about 20 to 30 m above a forest-lined loop of the Ellerbach. The first written mention of Hamborn dates from the 9th century in a document of the monastery Corvey. Between 1137 and 1140 Hamborn was donated to the cathedral chapter of Paderborn (dating of the burned deed of donation according to the Westphalia charter). The result is the obedience Hamborn. The origins of the castle go back to two estates, which were bought in the middle of the 19th century by the von Hartmann family and combined into a manor. The family built today's east wing of the castle. About Hermann von Mallinckrodt, Carl Caspar von Droste to Hülshoff, who brought the estate by acquisitions to about 750 ha and Heinrich von Droste to Hülshoff (author) came in 1913 to the baron Otto von Rüxleben. This built today's north wing with hall and a second tower. In 1928 the industrialist Johannes Leidl bought the castle and the estate. After a fire on March 6, 1929, the castle was burned down and was rebuilt in the episode. The estate was acquired in 1931 by Siegfried Pickert, who there, supported by Georg Moritz of Saxe-Altenburg, a curative boarding school on an anthroposophical basis. In 1940, under pressure from the Kreisbauernschaft, agriculture had to be leased and on June 9, 1941, the institution was finally disbanded by the National Socialists. In the following period, the National Socialist People's Welfare used Hamborn Castle as a mother-and-child recreation home ("Hilfswerk Mutter und Kind").