Written references to the Szigetvár castle date back to 1449, but it is thought that the central and oldest part of the castle would have been erected in the 14th and 15th centuries, by Janos, son of Anthimus, while in public office in Slavonia.
The castle is a national symbol of the tragic resistance against invading Turkish armies, whose forces vastly outnumbered those of the Hungarians. In 1566, when defending the castle was no longer a viable option, the castle's defenders, under the command of their captain, the Croatian Miklós Zrínyi, stepped out of the castle to face their destiny in what was to be a heroic battle against the Turks. This act of heroism has been commemorated on many occasions in Croatian and Hungarian literature, as well as in many paintings and sculptures.
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.