Stara Gradiška was one of the most notorious concentration and extermination camps in Croatia during World War II, mainly due to the crimes committed there against women and children. The camp was specially constructed for women and children of Serb, Jew, and Romani ethnicity. It was established by the Ustaše (Ustasha) regime of the Independent State of Croatia (NDH) in 1941 at the Stara Gradiška prison near the village of Stara Gradiška. The camp was liberated in April 1945 by the Partisans.
According to the list of victims by name of KCL Jasenovac, the Jasenovac memorial site, which includes research as of 2007, the names and data for 12,790 victims of the camp have been established.
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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.