Boymont Castle ruins are famous for the panoramic view. It was built between 1220-1240 by the relative of the Count of Eppan. Especially in the 14th century the family Boymont played an important role. After them the Castel was in the hands of the Austrian Ulrich Kässler for a short period after he married the rich daughter Barbara of Boymont in 1413. In 1425 Castel Boymont was victim of arson and has not been rebuilt after that event.
Boymont has not been build for a military reason, but it was more like a beautiful residential house. After it changed the owner a several times, nowadays it is property of Fritz Dellago since 1977, who had it restored and consolidated.
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.