Lamphey Bishop's Palace is a ruined medieval building complex in Lamphey. Whilst early thirteenth-century fragments from the old hall still exist, the palace, including the 25 metres great hall, was largely constructed under Bishop Henry de Gower, Bishop of St David's (1328–1347) and was used by high-ranking clergy. The palace was built in three stages and originally had over 20 rooms and featured fishponds, orchards, fruit and herb gardens and areas of parkland with grazing deer.
The palace was surrendered to the crown in 1546 during the reign Henry VIII and granted to Richard Devereux and subsequently the Earls of Essex. Walter Devereux, 1st Earl of Essex lived in the palace as a child. The palace was sold to the Owens of Orielton in 1683, possibly due to damage in the English Civil War. The buildings were possibly used for farm purposes in this era.
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.