The Old Town of Policastro is enclosed by medieval walls of Norman origin, dating from the time of King Roger I (11th century), and is dominated by a fortified castle. Policastro Bussentino also has other ancient monuments of great historical and artistic value.
The Castle of Policastro Bussentino stands out and was formerly a Byzantine fortress built in the 6th-7th century at the end of the Greek-Gothic War when Bussento passed under the dominion of the Byzantines, who built a fortress on the highest point of the hill.
In the 14th century the castle was enlarged and strengthened by Giacomo Sanseverino (1290-1364), as we can read on the marble inscription above the door to the east: Magnifico Domino Iacobus de Santo Sevirino, of 1309.
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.