Knutstorp estate was first mentioned in the mid-1300s. It was owned by the powerful Danish family Brahe until 1633. In 1771 Knutstorp was sold to Fredrik Wachtmeister and it has been since owned by his family.
The main building dates from the mid-1500s. It was built by Otte Brahe and is the birthplace of the famous astronomer Tycho Brahe (born 14 December 1546). After the occupation of Sweden King Carl XI ordered to strenghten Knutstorp as a stronghold. Danish army conquered it in the same year and the main building was damaged by fire. It was restored in 1728 and again in 1840s. Two wings were destroyed by fire in 1956.
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.