Seebenstein Castle, just south of Vienna, was built between 1180 and 1230. At one time, it was owned by the Princes of Lichtenstein; today it is privately owned and lived in by a family that opens it to the public on weekends. Filled with antique furnishings, the stone castle has some beautiful stained glass windows as well as a collection of children’s armor.
References:Hohenwerfen Castle stands high above the Austrian town of Werfen in the Salzach valley. The castle is surrounded by the Berchtesgaden Alps and the adjacent Tennengebirge mountain range. The fortification is a 'sister' of Hohensalzburg Castle both dated from the 11th century.
The former fortification was built between 1075 and 1078 during the Imperial Investiture Controversy by the order of Archbishop Gebhard of Salzburg as a strategic bulwark. Gebhard, an ally of Pope Gregory VII and the anti-king Rudolf of Rheinfelden, had three major castles extended to secure the Salzburg archbishopric against the forces of King Henry IV: Hohenwerfen, Hohensalzburg and Petersberg Castle at Friesach in Carinthia.