Dybäck estate was first mentioned in the 1300s. It was owned by several Danish noble families like Munck, Bille and Marsvin. In 1684 it was divided between Jorgen and Christian Bille. Their family owned the estate until 1857.
The oldest building is a barracks, built in the late 1400s. The main building was built in the 1500s and enlarged about hundred years later. Today Dybäck is privately owned and not open to the public.
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.