The Counts of Schwalenberg left the old castle Schwalenberg, which originally gave the family its name, later Oldenburg near Marienmünster, and built the city and the new castle, now known as Burg Schwalenberg. The castle was constructed from 1228 to 1231 during the time of Count Volkwin III. Around the same time, the town of Schwalenberg also emerged. The castle was pledged to various noble families from 1358 until the first quarter of the 17th century. In 1613, after the death of his father Simon VI., Hermann (1590–1620) inherited the office and the castle of Schwalenberg. He decreed that the keep be demolished in 1618. Later, it became the seat of branches of the House of Lippe. In 1627/28, a castle with elements of the late Renaissance was built on the site of the castle. One wing of the castle still remains, which was renovated between 1911 and 1913. Between 1938 and 1945, the castle was used as a convalescent home for mothers, and after that, it served as an evangelical children's recreation home until 1962. Subsequently, the building was renovated and converted into a hotel.
Situated on a hill above the town, the castle is accessible on foot or by vehicle from the city. The castle was sold in 2017, and as part of the planned redevelopment, it is undergoing renovations until 2019. The castle will be transformed into holiday apartments. These were approved in December 2018, and work on them has commenced. The castle cafe reopened in mid-January 2019.
References:The Clementinum is a historic complex of buildings in Prague. Until recently the complex hosted the National, University and Technical libraries, the City Library also being located nearby on Mariánské Náměstí. The Technical library and the Municipal library have moved to the Prague National Technical Library at Technická 6 since 2009. It is currently in use as the National Library of the Czech Republic.
Its history dates from the existence of a chapel dedicated to Saint Clement in the 11th century. A Dominican monastery was founded in the medieval period, which was transformed in 1556 to a Jesuit college. In 1622 the Jesuits transferred the library of Charles University to the Klementinum, and the college was merged with the University in 1654. The Jesuits remained until 1773, when the Klementinum was established as an observatory, library, and university by the Empress Maria Theresa of Austria.