Columbia subject headings:
Babenberg, House of.
Constitutional history--Austria.
Constitutional history--Holy Roman Empire.
Holy Roman Empire. Emperor (1155-1190 : Frederick I). Privilegium minus.
Harvard subject headings:
Babenberg, House of.
Constitutional history--Austria
Constitutional history--Holy Roman Empire
Holy Roman Empire. Emperor (1155-1190 : Frederick I). Privilegium minus.
Princeton subject headings:
Babenberg, House of.
Constitutional history--Austria.
Constitutional history--Holy Roman Empire.
Holy Roman Empire. Emperor (1155-1190 : Frederick I). Privilegium minus