Caldicot Castle is an extensive stone medieval castle, built near the site of Harold Godwinson's former Saxon castle by the Norman earls of Hereford from about 1100. Humphrey III de Bohun was the probable builder, in about 1170, of the stone keep and curtain walls of the present-day castle. The Bohun family held the manor and castle of Caldicot for more than two centuries, over eight generations.
In 1381, Essex was convulsed by the Peasants' Revolt. This may be why Thomas decided to spend part of that year in Caldicot. During his stay he gave orders for major new work to be done on the castle. A new gatehouse and drawbridge were constructed. At the rear of the castle a dovecote was replaced by a new tower with private chambers, now known as the Woodstock tower. At the foot of the Woodstock tower two carved stones were to be placed, one marked 'Thomas' the other 'Alianore'.
In the 16th-17th centuries Caldicot Castle was evidently neglected, fell into ruin and became little more than a farmyard. In 1964, Chepstow Rural District Council bought the castle. The building, including a small museum, was opened to the public in 1965.
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.