Strathaven Castle is located in the centre of the small town of Strathaven. The origins of the castle are obscure, but it is believed to have been built around 1350 by the Bairds, on a bend of the Powmillon Burn. Later the castle passed to the Sinclairs and then to the Earls of Douglas. After the suppression of the Earls of Douglas by James II in 1455, the castle was sacked and slighted. Little or nothing of the early castle remains.
In 1457 Strathaven was granted to Sir Andrew Stewart, an illegitimate grandson of Murdoch Stewart, Duke of Albany. Stewart, who later became Lord Avondale, either rebuilt the earlier castle, or built a new castle on the same site. In 1534 it passed to Sir James Hamilton of Finnart, who expanded the buildings.
It changed hands one last time in 1611, when the castle was sold to James, Marquis of Hamilton. The last occupant was Anne, Duchess of Hamilton (1632–1716), whose main residence was Hamilton Palace. The castle was abandoned in 1717.
Strathaven Castle is built on a rocky, partly artificial mound, and was defended to the east, south and west by the steep banks of the Powmillon Burn. A barmkin surrounded the top of the mound, traces of which remain to the west of the castle.
The castle comprised a three-storey rectangular block with a four-storey round tower at the north-west corner, and a small projecting wing at the south-east. Of this, the north wall and the tower remain almost complete, with fragments of the other walls. Internally, the remains of a collapsed basement vault can be seen.
Modern concrete infill has obscured much of the original detail, although a remnant of 15th-century-style corbelling remains visible. The round tower has several wide gunloops, and was probably added in the 16th century, and incorporates an improbably low 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.