The original Husen castle, documented for the first time in 1246, was probably built here by the dukes of Zähringen in the 12th century. It given into the possession of the counts of Freiburg. In 1303, the castle went to the counts of Fürstenberg as a result of the marriage of Verena of Freiburg.
Count Henry IV of Fürstenberg had the castle extensively remodelled and expanded from 1453 to 1477. A neck ditch and an outer ward guarded the actual castle with its palas and bergfried.
The castle was the residence of the prince’s castellans (Burgvögte). In 1632 it burned down and was rebuilt. In 1643 French-Weimar troops under Jean Baptiste Budes de Guébriant destroyed the castle.
Later the ruins were incorporated into fortified earthworks or schanzen in order to defend the valley against enemy troops. In 1896 the bergfried was given battlements instead of the tower’s conical roof. In 1968 the town of Hausach purchased the ruins from the House of Fürstenberg. Today, parts of the palas wall, the so-called battery tower and the bergfried survive.
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.