Windeck 'old' Castle was built around 1200 by the lords of Windeck. The family, probably of Franconian origin and based in the Ortenau, owned wealthy allodial estates and held numerous fiefs from various liege lords, such as the empire, the Prince-Bishopric of Straßburg, the counts of Eberstein as well as the Vogtei of Schwarzach Abbey as an Afterlehen of the burgraves of Nuremberg. The first documentary evidence dates to 1212 when a certain Melchior von Windeck comes to light, and, in 1248, the lords of Windeck are mentioned in a document at Schwarzach Abbey as ministeriales of the Bishop of Straßburg. The castle itself, however, is first mentioned in 1335. It became a jointly-managed castle or Ganerbenburg very early on as a result of divisions of inheritance.
In the early 13th century the New Windeck Castle (Burg Neu-Windeck) was built by a branch of the family near Lauf within sight of Old Windeck. During the course of the 13th and 14th centuries, the lords of Windeck came into conflict many times with neighbouring territorial lords, the city of Straßburg and the counts of Württemberg in alliance with the Martinsvögel during the so-called Schlegler Wars, during which the castle was besieged, but never captured and so remained largely undamaged. In the late 14th century, however, it was stricken by a devastating fire. Stables and domestic buildings were razed, and the valuable archives, the basis of numerous legal titles, were destroyed. Reinhard von Windeck had the affected buildings rebuilt.
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.