Assertion: major castle | /r/HasProperty | hohenwerfen
Facets:
Source sentences:
text: Gebhard, an ally of Pope Gregory VII and the anti-king Rudolf of Rheinfelden, had three major castles extended to secure the route across the Eastern Alps along the Salzach river against the forces of King Henry IV of Germany: Hohenwerfen, Hohensalzburg and Petersberg Castle at Friesach in Carinthia.