Kremasti Castle looks more like a tower-house than a real castle. Of square plan, it covers an area of 400 square metres and has a perimeter of 80 metres. The only entrance was on the north side. In 1914, the Italian medievalist G. Gerola discovered there the arms of grand master Fabrizio del Carretto (1513-1521) and of the Order of St. John.
The castle was a control point and in the line of sight of Phileremos castle. It served also as a summer resort for the Grand Masters of the Order. It was repaired in 1510-1520 but it existed at least since the 14th century. A document of 1479 the inhabitants of the villages of Trianda and Kremasti were to seek shelter in their own castles in case of need. Other Hospitaller documents show that the village of Kremasti was a castellany.
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.