Château de Montcornet was built between the 11th and 12th centuries by the first occupants, the Montcornets. In the 13th and 14th centuries, the fortress passed to Miles de Noyer and then to the Mello family. In 1446, Antoine I de Croy repurchased the castle and rebuilt it almost completely. In 1613, Charles of Gonzaga, who was in the process of building the nearby Charleville, capital of the Principauté d'Arches, purchases the castle. From then it passed into the hands of the Meillerais, then finally to the duke of Aiguillon, who dismantled it around 1760. Only ruins survive today.
The artefacts excavated from the castle grounds (keys, currency, pottery, bones, etc) are on display in a room of the castle.
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.