Columbia subject headings:
Harvard subject headings:
Asturias (Spain)--Church history.
Catholic Church--Spain--Asturias--History.
Catholic Church--Spain--History.
Charlemagne, Emperor, 742-814.
Church history--8th century.
Church history--9th century.
Spain--Church history.
Princeton subject headings:
Asturias (Spain)--Church history.
Asturias (Spain)--History.
Spain--History--Gothic period, 414-711.