Weißenborn Castle was first mentioned in a document in 1213 together with the village of the same name. Weißenborn was given to the Freiberg family von Hartitzsch as a fief in 1365, and it remained in their possession until 1802. The castle was built probably in the 14th century. Weissenborn was also not spared from wars, looting and the plague.
In 1802, Alexander von Hartitzsch sold the castle and manor to Christoph Schubert, who passed both on to a cavalry master from Weißenbach . Colonel Freiherr von Wangenheim acquired the manor from Count Hohenthal-Püchau in 1882 and kept it until 1924. In 1931, Dr. Otto Fritz new owner of the manor and expropriated in 1945. During the GDR era there was a culture house in the premises. Weissenborn Castle has been privately owned again since 2010.
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.