Kristianopel (originally founded as Christianople) was established by the Danish king Christian IV in 1603 as a fortress city and named after his newborn son - Christian, or Kristian, with Danish spelling. The Greek suffix '-opel' was given to give the town a cosmopolitan ring similar to Constantinople. Construction of the town was completed in 1606.
The first church was built in 1600, but burnt down only eleven years later by Swedish army. The current churc was built of stone between 1618-1624. The chandelier dates from the former Avaskär church. Tje pulpit dates from 1621 and altar 1624. There is also a royal chair of Christian IV (1635).
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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.