St Donat's Castle is a medieval castle in the Vale of Glamorgan, positioned on cliffs overlooking the Bristol Channel. The site has been occupied since the Iron Age, and was by tradition the home of the Celtic chieftain Caradog. The present castle's origins date from the 12th century when the de Haweys and later Peter de Stradling began its development. The Stradlings held the castle for four hundred years, until the death of Sir Thomas Stradling in a duel in 1738.
During the 18th century, the castle's status and condition declined and by the early 19th century it was only partly habitable. The later 19th and early 20th centuries saw several restorations.
Today the castle is home to some three hundred and fifty international students and, with a history of occupation extending back to the late-13th century, is among the oldest continuously inhabited castles in Wales. Both the castle and the grounds are of historical and architectural importance, and have Grade I listed status.
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.