The existence of Saarbrücken was first documented in 999 under the name 'Castellum Sarabrucca'. In the 17th century the castle was rebuilt in the style of the Renaissance, but later destroyed and now only the cellars of this construction remain. In the 18th century Prince Wilhelm Heinrich had his architect Stengel build a new Baroque residence on the same site. Since then the castle has suffered various bouts of destruction and was partially burnt down and reconstructed before being thoroughly and magnificently renovated in 1989. The architect Gottfried Böhm designed a state-of-the-art central block of steel and glass. The castle is now both an administrative centre and a venue for cultural events, conferences and festivities.
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.