Château de Brassac dates back to the 12th century. Initially a baronial seat under the Planels family, it later came under the Counts of Toulouse, English control under Richard the Lionheart, and eventually the French crown.
The castle was originally a keep surrounded by a moat dating from the 12th century. It walls enforced with walls in the next century. During the Hundred Years' War Brassac was captured multiple times by English forces.
During the French Revolution it was burned but later restored by the Galard family, its original owners. In 1997, it was returned to a Galard descendant and is now open for visits.
Château de Brassac has four circular towers, walls 2–3 meters thick, and defensive features like arrow slits. It retains a 14th-century main building atop the original keep's site, 15th-century additions, and a polygonal staircase tower. Access is via stone bridge replacing the original drawbridge.
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.