The Schauenstein or Oberes Schloss castle in Fürstenau (canton of Grisons) originated from a medieval defence tower or donjon. The first records date from the 13th century, when Fürstenau was owned by the Bishop of Chur. For this reason, Fürstenau was granted city rights in the fourteenth century. The bishop also built a palace and a castle in this town. The powerful dynasties Von Stampa and Von Planta owned the castle since the eighteenth century. Since 1998, the Heinrich Schwendener Foundation administers the castle, which today has an educational purpose and houses a hotel.