Narrow Water Castle is a famous 16th-century tower house and bawn near Warrenpoint. In 1212, a keep was built on the site by Hugh de Lacy, first Earl of Ulster, to prevent river-borne attacks on Newry. In the 1560s, the tower house and bawn were built. It is a typical example of the tower houses built throughout Ireland from the 14th until the early 17th century. This kind of building, normally rectangular in plan and three or more storeys high, comprised a series of superimposed chambers, with stairs, closets and latrines skillfully contrived within the walls (which are 1.5 metres or five feet thick in places) or sometimes contained in projecting angle turrets. The original was destroyed in the 1641 Rebellion.
On 27 August 1979, 18 British Army soldiers were killed by a Provisional IRA ambush at Narrow Water Castle (see Narrow Water ambush). It was the greatest single loss of life for the British Army during The Troubles.
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.