Mali Tabor Castle was mentioned for the first time at the end of the 15th century. It was then owned by the Ratkay family but its builders are unknown to this day. Between 1490 and 1504 it was owned by the viceroy of Croatia-Hungary John Corvinus. For almost three centuries it was owned by the powerful Hungarian family of Rattkay (1524-1793). In 1972, Ivan Rattkay left the Mali Tabor castle to his nephew, the baron Joseph Wintershoffen, in whose possession it remained until 1818, when it was inherited by Rikard Jelačić from the Zaprešić branch. They owned it until 1876, and from then it was owned by the Irish baron Henry Cavanagh.
In the earliest phase of construction the castle had the shape of a rectangular building with defense walls and four semi-towers. The western wall, is probably the original defense wall of the old Mali Tabor castle.
During the second phase of construction the castle was transformed into a one-storied Baroque palace. It remained in this function until the 19th century. In 1861 a one-storied annex was built in the eastern wing of the castle on the northern side. This was also the time when the northern defense wall of the castle was torn down and a new entrance portal was built. The portal has been preserved to this day. The castle is abandoned for many years today. It is in a bad state and for sale.
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.