Château de Sedan is a castle situated in Sedan, France, near the river Meuse. Covering an area of 35,000 square metres in its seven floors.
Around 1424, Eberhard II von der Mark built a manor with two towers around a church over a period of six years. When Eberhard died in 1440, his son Jean de la Marck began reinforcing the fortress, but it was Robert II de la Marck, the grandson of Jean, who finished the most important work. In 1530, the fortifications of the manor were modernised by the construction of a circular boulevard and terraces with cannons, thickening the 4.5-metre curtain wall by an additional 26 metres (85 ft). The bastions were added during the course of the next century, but some of them were eventually dynamited at the end of the 19th century. In 1699, the principality having been absorbed into France in 1642 (during the Thirty Years' War), and the castle having been transformed into a garrison, Vauban built the door of the Princes that was adapted to the progress of artillery. In 1822, the Church of Saint-Martin was demolished and replaced with a store for cannonballs.
On September 1, 1870 during the Franco-Prussian War, the Army of Chalons was defeated at the Battle of Sedan. Napoleon III surrendered the following day in the small neighboring city of Donchery.
The castle was used as a military hospital by the German army in World War I. Sedan was also the site of a French loss to the Germans in World War II in the Battle of Sedan (1940).
The castle was given by the French Army to the city of Sedan in 1962. Today the castle contains a hotel and a museum showing the lives of inhabitants throughout its history and the Franco-Prussian War.
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.