Kronburg Castle was first time mentioned in 1227. In the 13th and 14th centuries it changed hands several times between Hohenstaufen and Habsburg vassals. The castle was restored in 1490-1536 by Rechberg family. In 1524 it was occupied by revolting peasants and in 1625-1627 it was passed to Johann Eustach von Westernach.
Kronburg was conquered and partially demolished by French army during the War of the Spanish Succession (1703) and rebuilt in residential style in 1707. Today the castle is owned by the von Vequel-Westernach family and hosts weddings and other events.
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.