Raudonė Castle construction works started in late 16th century, during the reign of King Sigismund II August. A new renaissance castle was built on the ruins of the old one by a German knight, Hieronymus Krispin-Kirschenstein. The castle has since been rebuilt many times. The 18th century Polish owners of the Raudone estate, the family Olędzki (Olendzki) h. Rawicz commissioned Wawrzyniec Gucewicz with a renovation of the castle. The next owner, the Russian Prince Platon Zubov, acquired the estate in the first half of the 19th century and his family transformed the castle yet again. Their architect was Cesare Anichini.
Today the building is an example of 19th century neo-Gothic architecture. Its last private owners were Sophia Waxell (a Zubov) and her Portuguese husband from Madeira, José Carlos de Faria e Castro. The original castle is the setting of an East Prussian legend known as 'The White Maiden of the Bayersburg'.
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.