Kreuzenstein castle was constructed on the remains of an early medieval castle that had fallen into disrepair and was then demolished during the Thirty Years' War. Intended to be a family vault for the Wilczek family, it was rebuilt in the 19th century by Count Nepomuk Wilczek with money from the family's large Silesian coal mines. Kreuzenstein is interesting in that it was constructed out of sections of medieval structures purchased by the family from all over Europe to form an authentic-looking castle.
The origins of Kreuzenstein, like most castles in Lower Austria, date back to the 12th century. Originally built by the Counts of Formbach (now Vornbach, Bavaria), the castle passed into the possession of the Counts of Wasserburg through marriage. Through Ottokar II of Bohemia, the castle came into the possession of the Habsburgs, in 1278.
In July 1527, the Anabaptist preacher Balthasar Hubmaier was arrested under the pretext of causing riots in Mikulov, Moravia and transferred to Burg Kreuzenstein. He was interrogated there but refused to renounce his beliefs and was burned at the stake in Vienna. Until the Thirty Years War, the castle had never been conquered but then it fell into the hands of the Swedish Field Marshall Lennart Torstensson, who, on his departure in 1645, blew up three parts of the building.
Today the castle is a much-loved tourist destination and museum in the surrounding countryside of Vienna. At one time, a classical concert known as the Burgserenade was held in the great hall of the castle, at the end of June each year. This has been discontinued. Through the year from April to October, a falconry show, known as Adlerwarte Kreuzenstein is held on the estate. The recently renovated Burgtaverne Kreuzenstein is a restaurant, furnished to provide the atmosphere of a medieval tavern.
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.