Columbia subject headings:
Architecture, Carolingian.
Art, Carolingian.
Charlemagne, Emperor, 742-814.
Harvard subject headings:
Architecture, Carolingian.
Architecture, Medieval--Germany
Art, Carolingian.
Charlemagne, Emperor, 742-814--Art patronage.
Princeton subject headings:
Architecture, Carolingian.
Architecture, Medieval--Germany.
Art, Carolingian.
Charlemagne, Emperor, 742-814--Art patronage.