The medieval Kienburg castle was located between Huben and St. Johann im Walde, in the municipality of Matrei. Its name derives from the old German term for 'kühn', that's to say bold, or from Archbishop Erich Kuenburg, one of its owners. It is a hill castle, located in the forest above the Iseltal valley and mentioned for the first time around 1000 AD.
The castle had a key position in the trade of the Iseltal, Defereggental and Kalsertal valleys. Once, the mighty Earls of Lechsgemünde inhabited the castle, in the following centuries, it was witness and centre of fight and devastation. Among the owners there were the Bishopric of Salzburg and Knight Earl Christoph von Kienburg, its last inhabitant when it was destroyed by a fire in 1579. In 1945, an American aerial bomb destroyed most of the still existing walls.
Currently, the Kienburg Castle Ruin is being renovated: It is in private hands, the surrounding is a restricted archaeological area.
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.