Pürnstein castle, towering high above the valley, was built in the late 10th century. It was first time documented in 1170. In the 13th century, the castle became into the possession of the Prince-Bishopric of Passau. The current appearance dates mainly from the mid-15h century. The castle chapel was consecrated in 1449. Part of the ruins of the original fortifications are also preserved to this day.
A fire on September 7, 1866 destroyed the entire interior with all wooden parts and the roof of the inner castle, only the chapel was spared. The cause arson is specified. However, parts of the buildings added later, most of the 17th and 18th centuries are habitable today. The current owner and the Association for the Preservation of the castle Pürnstein take care of preservation and renovation of the castle.
The castle is located on a north- west and steep terrain. The spacious facility has five semi-circular towers. The main door leads into the outer bailey. The main castle can be reached by the upper castle gate. The main castle is a large, hexagonal residential castle. The courtyard measures 17 x 13.5 meters.
In the central Palas are the knights' hall, living room, kitchen, chapel and the castle courtyard. The palace is surrounded by a defensive wall with five towers. The thickness of the walls is up to six meters.
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.