Columbia subject headings:
Rabanus Maurus, Archbishop of Mainz, 784?-856--Exhibitions.
Harvard subject headings:
Christian art and symbolism--Medieval, 500-1500--Exhibitions
Rabanus Maurus, Archbishop of Mainz, 784?-856--Exhibitions.
Princeton subject headings:
Rabanus Maurus, Archbishop of Mainz, 784?-856--Exhibitions.