Château de Rochecotte, a late 18th century château, is known for its various owners and their many successive rebuilds. Originally, the château belonged to the comte de Rochecotte, who became one of the leaders of the second Chouannerie in Maine and was executed under the French Directory.
On 30 April 1828, one of the later owners, the chevalier René de La Selle de Ligné, sold it to Dorothée de Courlande, duchess of Dino, for 400,000 francs, then a considerable sum. Today Rochecotte serves as a 4-star hotel.
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.