The Château de Langeais is a medieval castle, rebuilt as a château. Founded in 992 by Fulk Nerra, Count of Anjou, the castle was soon attacked by Odo I, Count of Blois. After the unsuccessful attack, the now-ruined stone keep was built; it is one of the earliest datable stone examples of a keep. Between 994 and 996 the castle was besieged unsuccessfully twice more. During the conflict between the counts of Anjou and Blois, the castle changed hands several times, and in 1038 Fulk captured the castle again.
Under the Plantagenet kings, the château was fortified and expanded by Richard I of England (King Richard the Lionhearted). However, King Philippe II of France recaptured the château in 1206. Eventually though, during the Hundred Years' War, the English destroyed it. The château was rebuilt about 1465 during the reign of King Louis XI. The great hall of the château was the scene of the marriage of Anne of Brittany to King Charles VIII on December 6, 1491 that made the permanent union of Brittany and France.
In 1886, Jacques Siegfried bought Château Langeais and began a restoration program. He installed an outstanding collection of tapestries and furnishings and bequeathed the château to the Institut de France which still owns it today. Today Langeais is especially noted for its monumental and highly decorated chimneypieces. t is listed as a monument historique by the French Ministry of Culture and is open to the public.
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.