The first castle built on the rock spur above Bolzano by the Lords of Haselberg dates back to the 12th century. This Haselberg castle is today known as Castle Flavon. Already in those days the fortress boasted a circular wall at its east and south flank, which could easily be assaulted. The great hall was located just above the porphry rocks. It is presumed that also a donjon already existed in these days. Only few documents testify the renovations in the 13th and 15th century. Between 1474 and 1541 the castle was repeatedly changend and enlarged. Still today the renovations that were carried out under this rule is in great parts preserved.
A double arcade hall, a further great hall in the north of the castle as well as a new defence wall were added. Moreover the rooms of the three-winged castle were lushly decorated with frescoes. From 2001 to 2002 Castel Flavon was refurbished under the direction of the architect Dietmar Dejori. Overbuildings from the 18th century were eliminated from the ancient double arcades, cellars were laid open and the collapsed great hall in the north was rebuilt in order to restore the original three-winged form of the building.
Today Castel Flavon hosts a restaurant as well as various rooms that are used for seminars, congresses and celebrations. Worth noticing are also the frescoes in the interior, illustrating emperors and generals as well as scenes of the antique myth of Apollo.
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.