Columbia subject headings:
Frederick III, Holy Roman Emperor, 1415-1493--Sources.
Matthias I, King of Hungary, 1443-1490--Sources.
Vienna (Austria)--History--Siege, 1483-1485--Sources.
Harvard subject headings:
Frederick III, Holy Roman Emperor, 1415-1493--Sources.
Matthias I, King of Hungary, 1443-1490--Sources.
Vienna (Austria)--History--Siege, 1483.
Princeton subject headings:
Frederick III, Holy Roman Emperor, 1415-1493--Sources.
Matthias I, King of Hungary, 1443-1490--Sources.
Vienna (Austria)--History--Siege, 1483-1485--Sources.