The Château de Robert le Diable (also known as Château de Moulineaux) was a feudal castle from the time of the Dukes of Normandy. It is named after Robert the Devil who was also known as Robert de Montgomery and Robert le Magnifique ('the magnificent'). He was the Duke of Normandy and father of William the Conqueror. However, there is no evidence that this person was involved in the construction.
The castle was built during the 11th and 12th centuries. It stands on a hill which dominates the River Seine, the view extending over the whole Rouen region, making it a particularly strategic location. It is known that the English King Richard I ('Lionheart') stayed here. His brother, King John ('Lackland') destroyed the castle during his struggle with the King of France Philip II Augustus. The castle was rebuilt in 1378 by the Lord of Sefton. During the Hundred Years War, the people of Rouen destroyed the towers to prevent the castle being used by the English. Half ruined, it is today furnished with various artefacts as well as reconstructed scenes of local history and life in the Middle Ages. The castle is privately owned.
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.