Burg Pürnstein, situated in the Bohemian Forest region near Neufelden in Upper Austria, is a medieval castle with over a thousand years of documented history, first mentioned in records from 1010. Known as "the last fortress and the first castle," Pürnstein served as both a fortress and bishop's castle under the Passau dynasty. During the medieval period, it became one of the most heavily fortified castles in the country under the Starhemberg family and played a crucial defensive role during the region's Peasants' Wars. Positioned at 537 metres above sea level, this historic stronghold exemplifies the architectural evolution from fortress to castle, preserving important medieval construction techniques and serving as a testament to the strategic importance of Upper Austrian territory throughout the High and Late Middle Ages.