The present Beaufort castle is a Baronial style mansion built in 1880, but incorporates older building work. There has been a castle on the site since the 12th century. Beaufort is the traditional seat of the Lords Lovat. The earliest mention of the site, as Downie or Dounie Castle, occurs in the reign of Alexander I (1106–1124), when a siege took place. The original castle was built by the Byset family. The castle came into the hands of the Frasers in the late 13th century. English forces besieged the castle in 1303.
In the 1650s Dounie was attacked and burned by the forces of Oliver Cromwell during their invasion of Scotland. It was again razed by the Duke of Cumberland in Jacobite Rising of 1745, and the estate was declared forfeit. In 1815 the estate was inherited by Thomas Fraser of Strichen (1802–1875), who was reinstated to the Lordship of Lovat in 1854. In 1839 he commissioned William Burn to extend the house, and also improved the grounds and estate. His son Simon Fraser, 13th Lord Lovat (1828–1887), built the present Beaufort Castle, to designs by James Maitland Wardrop, incorporating part of the 18th-century house.
The Baronial mansion incorporates a private Roman Catholic chapel. The remains of Dounie Castle stand beside the house, and comprise a single wall, 11 metres long and 1.5 metres high.
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.