Columbia subject headings:
Harvard subject headings:
Apocalyptic literature--History and criticism.
Europe--History--Prophecies--Early works to 1800.
Europe--History--Prophecies.
Frederick II, Holy Roman Emperor, 1194-1250--Prophecies.
Holy Roman Empire--History--Prophecies.
Prophecies--History.
Sibilla Erithea Babilonica.
Princeton subject headings:
Apocalyptic literature--History and criticism.
Europe--History--Prophecies--Early works to 1800.
Europe--History--Prophecies.
Frederick II, Holy Roman Emperor, 1194-1250--Prophecies.
Holy Roman Empire--History--Prophecies.
Prophecies--History.
Sibilla Erithea Babilonica.