Mauterndorf Castle stands at 1,138 meters altitude in the Austrian Alps, built around 1253 by the Archbishops of Salzburg on the site of a Roman fort dating to AD 326. Originally constructed to control the vital trade routes through the Tauern passes, the fortress functioned as a strategic toll station for Alpine travelers. Prussian physician Dr. Hermann von Epenstein rebuilt the ensemble extensively in 1894, and the province of Salzburg acquired it in 1968. After comprehensive restoration from 1979–1982, it opened as a castle museum in 2003 and now houses the Lungau Regional Museum, offering visitors insight into Roman heritage and Alpine medieval history.
