In the 13th century, the town of Kadaň was promoted to a 'Royal City'. It began to thrive and a new town was built on the heights above the river, with a castle and Franciscan monastery. The castle was mentioned first time in 1289. It was established as a four-wing Premyslid castle with a housing palace over the river. It served as the seat of the royal burgrave – the administrator of the Kadan region.
The castle was rebuilt in the mid-15th century. After it had been damaged during the Thirty Years Wars, Maria Therese allowed it to be rebuilt as military quarters in 1750. The eastern wing is used for the municipal library with an internet cafe and ceremonial hall. The Josef Liesler Gallery has been in operation since September 2000. A nursing home is situated in another part of the castle.References:
Heidelberg Castle is a famous ruin and one of the the most important Renaissance structures north of the Alps. The rich and eventful history of Heidelberg Palace began when the counts palatine of the Rhine, – later prince electors – established their residence at Heidelberg. The earliest castle structure was built before 1214 and later expanded into two castles circa 1294; however, in 1537, a lightning-bolt destroyed the upper castle. Until the Thirty Years’ War, Heidelberg Palace boasted one of the most notable ensembles of buildings in the Holy Roman Empire. The present structures had been expanded by 1650, before damage by later wars and fires. In 1764, another lightning-bolt caused a fire which destroyed some rebuilt sections.
The 19th century brought a new wave of admiration: a sight both terrible and beautiful, the ruins epitomised the spirit of the Romantic movement. Heidelberg Palace was elevated to a national monument. The imposing edifice and its famous garden, the Hortus Palatinus, became shrouded in myth. The garden, the last work commissioned by the prince electors, was never completed. Some remaining landscaped terraces and other vestiges hint at the awe-inspiring scale of this ambitious project. In the 17th century, it was celebrated as the “eighth wonder of the world”. While time has taken its toll, Heidelberg Palace’s fame lives on to this day.
Heidelberg Castle is located 80 metres up the northern part of the Königstuhl hillside, and thereby dominates the view of the old downtown. Set against the deep green forests on the north flank of Königstuhl hill, the red sandstone ruins tower majestically over the Neckar valley.