The Château de Langeais is a medieval castle, rebuilt as a château. Founded in 992 by Fulk Nerra, Count of Anjou, the castle was soon attacked by Odo I, Count of Blois. After the unsuccessful attack, the now-ruined stone keep was built; it is one of the earliest datable stone examples of a keep. Between 994 and 996 the castle was besieged unsuccessfully twice more. During the conflict between the counts of Anjou and Blois, the castle changed hands several times, and in 1038 Fulk captured the castle again.
Under the Plantagenet kings, the château was fortified and expanded by Richard I of England (King Richard the Lionhearted). However, King Philippe II of France recaptured the château in 1206. Eventually though, during the Hundred Years' War, the English destroyed it. The château was rebuilt about 1465 during the reign of King Louis XI. The great hall of the château was the scene of the marriage of Anne of Brittany to King Charles VIII on December 6, 1491 that made the permanent union of Brittany and France.
In 1886, Jacques Siegfried bought Château Langeais and began a restoration program. He installed an outstanding collection of tapestries and furnishings and bequeathed the château to the Institut de France which still owns it today. Today Langeais is especially noted for its monumental and highly decorated chimneypieces. t is listed as a monument historique by the French Ministry of Culture and is open to the public.
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.