The ruins of Czorsztyn Castle stands at the top of the hill nearby Dunajec. According to Jan Długosz, in 1246 the owner of the castle was Piotr Wydżga. However that theory was never after confirmed by other historians, so the beginnings of castle functioning are dated on 14th century. Large development of the castle took place during the reign of Casimir III the Great. In years 1629–1643, when Jan Baranowski was a starosta of Czorsztyn, the castle was fundamentally rebuilt. In 1790 the roof of the castle burnt after a thunder clap. In the result castle was quickly broken down and became empty.
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.