Dunyvaig Castle was built on top of an ancient fort or dun in the 12th century. Forfeited in 1493, the castle passed to the MacIans of Ardnamurchan. Afterwards the castle was leased to the MacDonalds, then the Campbells and back to the MacDonalds.
In the 17th century Dunyvaig was conquered several times by the English and Scottish armies. The castle was seized in 1647 by the Covenanters and passed into the hands of the Campbells of Cawdor, who held it until 1677, when Sir Hugh Campbell pulled down the castle and moved to Islay House.
Today all that remains of the castle are mainly the ruins of the sixteenth-century castle, although the site includes a thirteenth-century courtyard, and a fifteenth-century keep.
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.