The Princely Castle at Bogolyubovo (1158-1165) contains the remains of the 12th century Royal Palace, in the form of the Cathedral of the Nativity of the Virgin and the Staircase Tower of Andrei Bogolyubskii. Bogolyubovo was once the residence of the Prince Andrei Bogolyubsky. Great Prince Andrei spent 17 years of his reign in Bogolyubovo before he was murdered there in 1174. After Prince Andrei's death, Bogolyubovo was ravaged and ransacked by Prince Gleb of Ryazan in 1177. In 1230s, the Mongols destroyed its fortifications.
The cathedral is a 17th century building on the site of the original structure. There is a tent-roofed bell-tower of the 17th century. The Church of the Intercession (1165) on the Nerl River is located at the point of the original river gate of Vladimir. It has a single dome supported on four piers with a helmet dome at the crossing and reliefs on the upper part of the exterior walls.
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.