The Castle of Châteauneuf-du-Pape was probably originally a Roman castrum destroyed during the great invasions. A 913 charter referred to the castellum de Leri. The first mention of a Castro Novo (new fortified village), which led to the name Châteauneuf, did not appear until 1048. In 1077 the keep was built there. Throughout the Middle Ages, the old château was a watchtower and a toll gate on the Rhône that passed to various families allied to the house of Albaron. Only a tower remained in 1146, and by 1283 it was already being referred to as 'the old tower'.
Jacques d'Euze, previously the bishop of Avignon, was elected pope in 1316 and took the name John XXII. Châteauneuf fell directly under his authority. Then in 1317 he decided to build a new château above the village. It was finished in 1333. Due to its size and location its function was essentially defensive At the same time, in 1318, he circled it with ramparts.
After the Popes returned to Rome in the early 15th century, the castle was abandoned, for the bishops did not have the means to maintain the castle. During the years which followed, the castle underwent the vicissitudes of time, including times of strife such as the Wars of Religion in the 16th century. In 1892 it was ranked as a historical monument, and was again damaged during the World War II.
Today, all that remains is a sungeon, the southern wall, and the lower pontifical cellar. The castle is the emblem of the town of Châteauneuf-du-Pape and is often used for local receptions and wine events, such as the Councils of the Echansonnerie des Papes, the Bacchic Brotherhood of Châteauneuf-du-Pape Wines.
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.