Arnoldstein 's name derives from the alleged founder of its castle , one knight Arnold , probably a '' ministerialis '' serving the Bishops of Bamberg . Upon his coronation in 1014 , Emperor Henry II had granted large estates in the Duchy of Carinthia to the Bamberg diocese , that originally had been a possession of the Patriarchs of Aquileia . The castle itself was first mentioned about 1085 , here Bishop Otto of Bamberg established a Benedictine abbey in 1106 to secure his Carinthian fiefs . Nevertheless , in 1176 , the monks had to accept the secular '' Vogt '' overlordship of the Carinthian Sponheim dukes . In the mid-14th century their estates were devastated both by the 1348 Friuli earthquake and the Black Death pandemic
1348 Friuli earthquake
1348 Friuli earthquake
Arnoldstein