Ruhethal Castle was built in 1150 in the Döllnitztal including the chapel and was the former bishopric of the Meißen diocese. At the place where the castle stands today, there used to be a moated castle. Meißner bishops carried out further modifications in 1261 and 1341. The mighty 40-meter-high tower, which was built under Bishop Nicholas I in 1380, is characteristic of the view of Ruhetal Castle .
Around 1590 the castle was the resting place of Bishop Johann IX. from Haugwitz . Today the Free State of Saxony is the owner. A development association from Mügeln develops usage concepts and takes care of the maintenance of the castle.
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.