Exciting history of the castle (source Wikipedia):
The Knights of Gelting settled in Haiding around 1312 and built a fortified moated castle here. The Schaunbergers, who claimed this area for themselves, took the castle, burned it down and forced the Geltings to declare that they never wanted to build Haiding as a castle again. After the Schaunbergers were conquered by the Habsburgs, Ulrich Geltinger received Haiding in 1386 as a sovereign fief. After this family died out, a Hostorffer received the estate – presumably as a princely caretaker. It is unknown how the property came to the Rondinelli; In any case, a Hans Sigmund Rondinelli sold the Haiding seat to Count Engelbert Katzianer; As late as 1674, a Sigmund Ferdinand Katzianer was resident on the property, which had grown into a castle. In 1727 the castle was owned by Count Wilhelm Strattmann. He had bought the castle from the Katzians and added his entailed estate to the Peuerbach estate. Until the abolition of the entail in 1825, Haiding belonged to the Strattmann-Batthyany estates. After a division of property, Haiding passed to Prince Philipp Batthyany. In 1879 Prince Wilhelm Alfred Montenuovo, who was married to Juliane Batthyany, inherited the castle. Three years later, the prince sold the uninhabited castle to Hans and Maria Pauler, who used it as a farm. At the beginning of the 20th century the castle was left to decay. It was only renovated in 1970 by the master builder and penultimate owner Friedrich Achleitner and now by his son. The building is a historical monument.