Ansembourg Old Castle is one of the castles belonging to the Valley of the Seven Castles. Located high above the little village of Ansembourg, the medieval castle is the private residence of the current Count and Countess of Ansembourg.
The property is first mentioned in 1135 when the lord of the castle was Hubert d'Ansembourg. The fortifications were probably built in the middle of the 12th century. At the beginning of the 14th century, the south-western tower gate and the northern keep appear to have been built by Jofroit d'Ansembourg. Since the times of Jakob II de Raville-Ansembourg, the castle does not appear to have been significantly altered. The main entrance bears the date of 1565. In 1683, the castle was damaged by the French troups of Marshal de Boufflers. In the 17th century, repairs were carried out by the Bidart and the Marchant et d'Ansembourg families who built the New Castle of Ansembourg.
Today the castle is owned by Count Gaston-Gaëtan de Marchant et d'Ansembourg who moved into the property after the death of his father. At the end of 2008, the Luxembourg government acquired the family's library (around 6000 books) and were offered the family archives. Interest had grown in the collection after the Codex Mariendalensis manuscript telling the story of Yolanda of Vianden was found in 1999 by the linguist Guy Berg. The manuscript dating from the end of the 14th or beginning of the 15th century was especially significant as it was written in the Moselle Franconian dialect which is closely related to modern Luxembourgish.
The castle is strictly private property and is not open to visitors. Recently, the Count of Ansembourg opened a very exclusive boutique hotel, in one of the buildings surrounding the castle.
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.