The ruins of Schachenstein Castle are located in the municipality of Thörl, above the village not far from the Thörlbach stream and north of Bruck an der Mur in the Styria, Austria.
Schachenstein Castle was the last hill castle to be built in the Styria. Its primary role was as a fortified, lordly residence, thus no subjects were in service to the castle captains. The castle was never besieged, despite serious unrest such as the Baumkircher feud and Turkish raids.
Wikipedia https://en.wikipedia.org/wiki/Schachenstein_Castle
Official Website http://www.burgen-austria.com/archive.php?id=478
Address 1 Thörl, Thörl 8621, Austria
Coordinates 47°31'7.779" N 15°13'11.617" E