Perched on top of the hill, La Mothe Castle dominates the village of Arvier. Unfortunately only the four sided tower remains intact, while the ruins of the round tower and the perimeter wall are still visible. From its current appearance, construction of the castle is estimated as being between the end of the 12th and the start of the 13th century, with important modifications in the 15th century. It was first mentioned in 1287, when Aimone de Arverio paid feudal homage to the count of Savoy. According to 18th-century historian Jean-Baptiste De Tillier, the Savoy nobleman Aimar de la Mothe came to Val d’Aosta towards the end of the 13th century and married the heiress of the noble De Arverio family, thus gaining possession of the castle, before restoring it and giving it his own name.
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.