Mladá Boleslav Castle, originally built in the first half of the 14th century, has gone through many development stages. Despite the Renaissance castle and the period of devastation after the Thirty Years' War, the army took over the building for 200 years and converted it into a barracks. Between 1940 and 1943, Jews from the wider Boleslav area were interned here. Today it is the seat of the Museum of Mladá Boleslav and Archive.
The castle was used as a seat of castle wardens and later clerks serving the nobility and the nobility itself.
After the Thirty Years’ War, the castle became the property of the town and decayed significantly. In the mid-18th century, the entire building was reconstructed to serve as army barracks and was used by the army until 1953. After this, the castle served as a textile warehouse until 1972.
The Museum of the Mladá Boleslav region currently operates in the castle.
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.