The castle was famously besieged by King George of Poděbrady in 1465 because its owner, Jan of Lichtenburg, refused to recognize the king's authority.
During the 15th-century expansion, a sophisticated multi-layered fortification system was added to defend against new gunpowder-based weaponry.
The castle’s name likely stems from the German 'Zornstein', meaning 'Stone of Wrath'.
It was one of the few castles in the region that remained unconquered for decades before finally falling during the 15th-century religious and political unrest.
The site features a rare preserved 'palas' or main residential building, showing distinct gothic architectural elements.
Archaeological digs have uncovered significant quantities of late medieval ceramics and metalwork currently housed at the Znojmo Museum.
Cornštejn Castle is a 14th-century fortress ruins situated on a rocky promontory above the confluence of the Dyje and Želetavka rivers. Founded by the Lichtenburg family to consolidate their hold over the Bítov estate, the castle served as a key defensive site in Southern Moravia. It was notably expanded in the 15th century but was rendered obsolete and abandoned by the late 16th century. The site is managed by the Znojmo Museum and features preserved sections of the outer fortification walls, residential wings, and defensive towers. Visitors can explore the interior courtyard and climb accessible ramparts for views of the surrounding Vranov Reservoir area. The castle is a frequent venue for historical reenactments, sword fighting demonstrations, and falconry shows during the summer season. Ongoing stabilization efforts ensure the structural integrity of the masonry while maintaining the authentic aesthetic of the ruins.
The highest point of the southern rampart, providing an unobstructed panoramic view of the river valley below.
Wear sturdy, closed-toe hiking shoes as the terrain consists of uneven stone surfaces, loose gravel, and steep paths.
Bring binoculars for observing the raptors often featured in onsite historical demonstrations.
Check the official museum calendar in advance, as the castle frequently hosts private events or reenactments that may alter public access.
Attempting to access the interior during severe wind or rain, as the slippery stone walkways become hazardous.
Open seasonally from spring through autumn; typically closed during the winter months.
Do not climb on unstable masonry or bypass marked barriers for safety reasons.
