Traquair House is claimed to be the oldest continually inhabited house in Scotland. Whilst not strictly a castle, it is built in the style of a fortified mansion. It pre-dates the Scottish Baronial style of architecture, and may have been one of the influences on this style. The estate contains the famous Traquair Brewery.
The house is built on the site of a hunting seat used by the Scottish kings from the 12th century, though no part of the present building can be dated with certainty before the 15th century. Alexander I was the first Scottish king to stay and hunt at Traquair.
Over the next two centuries Traquair's ownership changed often, at times coming under the control of the English, and at others, the Scottish throne. Traquair remained the family seat of the Earls of Traquair from 1491 for the next four centuries.
Traquair is a 50-room house mainly dating from teh 16th-19th centuries. There is a Roman Catholic chapel built in 1829, following the Catholic emancipation. The 18th-century library contains more than 3,000 volumes. Although three lairds made alterations to the house prior to the 17th century, Traquair has changed little, architecturally, since then.
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.