Corvin Castle,  Hunedoara, Transylvania, Romania...    www.castlesandmanorhouses.com   ...    aka Corvins’ Castle, Hunyad Castle or Hunedoara Castle, Construction of Corvin Castle began on the orders of John Hunyadi in 1446. He transformed the former keep built by Charles I of Hungary. Built over the site of an older fortification and on a rock above the small Zlaști River, the castle is large and imposing.