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:Rosenborg Palace was built in the period 1606-34 as Christian IV’s summerhouse just outside the ramparts of Copenhagen. Christian IV was very fond of the palace and often stayed at the castle when he resided in Copenhagen, and it was here that he died in 1648. After his death, the palace passed to his son King Frederik III, who together with his queen, Sophie Amalie, carried out several types of modernisation.
The last king who used the place as a residence was Frederik IV, and around 1720, Rosenborg was abandoned in favor of Frederiksborg Palace.Through the 1700s, considerable art treasures were collected at Rosenborg Castle, among other things items from the estates of deceased royalty and from Christiansborg after the fire there in 1794.
Soon the idea of a museum arose, and that was realised in 1833, which is The Royal Danish Collection’s official year of establishment.