Genovevaburg is a castle standing on the southwestern side of Mayen in the German state of Rhineland-Palatinate. The castle is the symbol of Mayen and has been rebuilt several times since first being destroyed in 1689. Its name comes from a legend, according to which the seats of counts palatine, Siegfried and his wife, Genevieve of Brabant (German: Genoveva), were supposed to be on the same hill in (or above) Mayen. The earliest references linking the legend to this region date to the 17th century. Since when the castle and its bergfried, the so-called Golo Tower (Goloturm), have been linked to the legend is unknown.
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.