Columbia subject headings:
Civilization, Medieval.
Lower Austria (Austria)--Antiquities.
Lower Austria (Austria)--History.
Nobility--Austria--Lower Austria--History.
Harvard subject headings:
Aristocracy (Social class)--Austria--Lower Austria--History.
Civilization, Medieval
Lower Austria (Austria)--Antiquities.
Lower Austria (Austria)--Civilization.
Lower Austria (Austria)--History.
Nobility--Austria--Lower Austria--History.
Princeton subject headings: