Kokořín Castle was built around 1320 by order of Hynek Berka of Dubé. At the close of the 15th century the castle was heavily damaged during the Hussite Wars and renovated in the late Gothic style by the lords of Klinštejn. Since the middle of the 17th century Kokořín had been tenantless and it deteriorated.
The ruins were not bought until 1894 by Václav Špaček of Starburk, who decided to renovate the castle. The architect, Eduard Sochor, was a leader in this project and, considering its occurrence between 1911 and 1918, it was one of the latest Romantic restorations of a Medieval object.
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.