Tvrdalj Castle was the summer residence of Petar Hektorović, the Croatian poet (1487–1572). During the 16th century, the island of Hvar came under attack from the Ottoman Turks. Hektorović, one of the local nobles, undertook to fortify his house so that it could act as shelter for the local citizens.
Tvrdalj is a well-preserved Renaissance building, with a long closed facade on the seaward side, to protect it from attack. The interior courtyard contains a sea-water fishpool, enclosed by a vaulted and arcaded terrace. Next to it is a tower with a dovecote. The living quarters, together with the servant quarters, and several wells, are arranged around the pool. Behind the main buildings is a walled garden where Hektorović cultivated herbs and medicinal plants.
A series of inscriptions are set into walls of the mansion in Latin and Croatian. Those in Croatian are considered to be some of the oldest extant.
In 1571 Stari Grad was again attacked and Tvrdalj was set on fire by the Turks. A year later, Petar Hektorovic died and the damaged Tvrdalj was divided between his relatives. Following provisions in his will, there were gradual improvements made. However, in 1834 the Venetian laws lapsed and Tvrdalj experienced massive construction works: the south wall of the complex was removed, vaults constructed around the pool, a second floor added on either side of the tower, and new two-storey houses were built. The bay in front of Tvrdalj was filled in as part of the harbour improvements. In the 20th century, further major changes were experienced in 1901 when the eastern wall was demolished and houses built over the vault and cistern which is still part of the Tvrdalj entrance.
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.