Verrès Castle has been called one of the most impressive buildings from the Middle Ages in the Aosta Valley. Built as a military fortress by Yblet de Challant in the 14th century, it was one of the first examples of a castle constructed as a single structure rather than as a series of buildings enclosed in a circuit wall. The castle stands on a rocky promonitory on the opposite side of the Dora Baltea from Issogne Castle. The castle dominates the town of Verrès and the access to the Val d'Ayas. From the outside it looks like an austere cube, thirty metres long on each side and practically free of decorative elements.
The earliest documents attesting the existence of a castle at Verrès date to 1287. At that time, control of the area was contested between the Bishop of Aosta and some noble families which were vassals of the Counts of Savoy.
Around the middle of the 14th century, the De Verretio became extinct without leaving any possible heirs, so their property came into the possession of the counts of Savoy, who granted it to Yblet de Challant in 1372 as a reward for diverse duties discharged in their service.
Yblet entirely rebuilt the castle, producing a fortress that was practically impenetrable and distinct from most of the contemporary castles of the region which consisted of a number of buildings surrounded by a circuit wall.
In 1536 the fortress was renovated to take account of the appearance of firearms. The base of the cubic structure was surrounded by a circuit wall with counterforts and polygonal turrets, adapted to cope with cannons and equipped with pieces of artillery. The cannons were brought from Switzerland.
Hovewere, Verrès was abandoned in 1661 after the powerful Fort Bard was built. After a series of transfers it was finally acquired in 1894 by the Italian state which carried out restoration work.
In 2004 the castle was closed to allow strengthening and adjustment of the structure. Since then was reopened and has been open to guided tours.
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.