The history of the Toszek Castle dates back to the tenth-eleventh century, when an early defensive castle was located on the castle's grounds. The castle was built two centuries later, in about the year 1222. When the Kingdom of Poland was under feudal fragmentation, the castle housed the following Silesian dukes and castellans. The most important part of the castle's being, was that under the rule of Duke Przemysław Toszecki, of the Oświęcim family line. After his death the castle became of property of the Dukes of Opole. In the sixteenth century, the castle was the property of the Habsburgs. Which gave the castle to do Redernów family, which they bought in 1592. In between 1638-1707 the castle was ruled by the Colonna family, which had made a full-scale reconstruction of the castle - by which the castle became a magnate residence, the first one in Upper Silesia. The following owners were: Johann Dietrich von Peterswald, Count Franciszek Karol Kotuliński, Posadowski family, and finally Adolf von Eichendorff.
In 1797, the castle was sold to Count Franciszek Adam Gaschinów. Shortly after, in 1811, the castle burned down and became a ruin. In 1840 the ruins were bought by Abraham Guradze, and the Guradze family maintained possession of the castle until World War II, when Abraham's great-grandson Count Kurt von Guradze bequeathed the castle to the youth of Poland. The castle was finally partially rebuilt in the 1950s and 1960s. Today, the castle houses a centre of culture, and a primary wedding celebration venue.
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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.