Once situated directly on the banks of the Rhine, Brömserburg Castle was owned by the Archbishops of Mainz from the beginning of the 10th to the beginning of the 19th century. During the 12th century they converted the old fortress into a castle residence. With its vaulted ceilings and walls of more than two metres thick, it successfully provided resistance against any attack. One exception was the destruction of the castle’s southeastern part, which was destroyed in 1640 by the Duke of Longueville. The castle was inhabited up until 1937, before be- ing acquired by Rüdesheim’s town council in 1941. Today, the castle houses the extensive collections of Rheingau’s wine museum.
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.