Schloss Rubein was probably built in the 13th century by the lords of Rubein. The first document of castle dates from 1220. The major restoration took place after 1875 by the Count Brandis and later by Countess Anna Asseburg-Wolff-Metternich and his husband. Their descendants are still in possession.
The 21m high tower was erected for the defensive purposes and the castle was built around it. during The late Gothic chapel dates from 1455. The imposing structure, surrounded by a 5-hectare park, now houses a hotel and is used for conferences.
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.