Ehrenhausen Castle is well-preserved three-story and four-wing building from the 12th century. The castle was first mentioned in 1240. The current castle was built by the Eggenberg family in the 16h century. It was one of Austria′s numerous fortifications that secured the South and the East of the country against the Turks.
On the castle hill there is also the mausoleum of Ruprecht von Eggenberg (1546-1611) and his nephew Wolf von Eggenberg which was designed by Italian painter and architect Giovanni Pietro de Pomis.
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.