The Dobra Castle ruins are located on a steep volcanic cone rising directly above the market town of Neuhaus am Klausenbach. The castle's origins date back to the 12th century: Built as a Hungarian border fortress, it formed a dam in the Klausenbach Valley, serving as a strategic counterpart to the Styrian Kapfenstein Castle. During numerous conflicts throughout the Middle Ages, the fortress was repeatedly conquered and changed hands. The castle was last captured by Andreas Baumkircher in 1467, suffering significant damage.
Although the complex was restored, the end of the castle's military and political significance at the beginning of the modern era led to a rapid decline of the once mighty fortification from the mid-17th century onward. As in many similar cases, the buildings were actively demolished, and the stones were reused as building material elsewhere. Today, only the remains of the thick inner walls of the pentagonal castle courtyard bear witness to its past strength.