The Book of Kells is one of the most famous artworks of the Early Middle Ages. This is Folio 32v, Christ Enthroned.
(Scanned from Treasures of Irish Art, 1500 B.C. to 1500 A.D. New York: Metropolitan Museum of Art & Alfred A. Knopf, 1977; Wikimedia Commons)
For in-depth assistance in maneuvering through the Middle Ages explore the subject guide maintained by Susan Steuer, WMU's special collections librarian.