Usk Castle is located immediately to the north of the present day town on a hill overlooking the streets and main Twyn square. The castle and town was probably laid out and established in 1120, after some of the other Norman settlements and castles of the region, such as Monmouth Castle and Abergavenny Castle. However, the site had a history of previous military, strategic, and local significance, for it was here that the Romans had established their early Legionary fortress before relocating it south to Caerleon.
Usk is first mentioned in 1138 in the context of it being captured by the Welsh. It passed back into Norman hands, only to be captured by the Welsh again in 1174, as was Abergavenny, when turmoil again developed into open conflict in this area of the Welsh Marches. The Welsh duly captured Usk castle again in 1184.
The rebellion of Owain Glyndŵr, between 1400 and 1405, brought significant conflict to the area once again, and the Welsh forces of Owain Gyndwr attacked Usk town in 1402. The Battle of Pwll Melyn was fought nearby, and the region only stabilised under the efforts of local Welsh warrior and ally of King Henry IV of England and Monmouth-born Henry V, Davy Gam.
After the rebellion the castle passed to the Duchy of Lancaster, and, with stability restored, no further redevelopment or refortification was undertaken and the castle was allowed gradually to decay. It survived the English Civil War with only some slighting, and was eventually redeveloped when the gatehouse was adapted to a house in the 1680s.
Today, the remains are quite substantial and include some interesting elements such as the dovecote tower. Although a private residence of the Humphreys family, events are held throughout the summer months.
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.