The old town of Avigliana is one of the most significant in Piedmont, for its medieval architecture and its churches. The castle was probably built in 942 by the Marqueses Arduinici of Turin (it was probably Arduino the Hairless who built the first settlement of Castrum Avilianae) on the top of Mount Pezzulano. This castle was used by the Counts of Savoy at least from 1137. In 1691, after conquering it, the French Marshal Catinat got it definitively demolished, leaving the remains we can see after a pleasant walk from Piazza Conte Rosso.
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.