Pope Leo III was bishop of Rome and ruler of the Papal States from 26 December 795 to his death on 12 June 816.
Mosaic at Triclinium Leoninum
Rescue of Pope Leo III by Winigis; fresco by Ignazio Danti (1580)
Detail from The Coronation of Charlemagne by Raphael (1517)
The Byzantine Iconoclasm are two periods in the history of the Byzantine Empire when the use of religious images or icons was opposed by religious and imperial authorities within the Ecumenical Patria
A simple cross: example of iconoclastic art in the Hagia Irene church in Istanbul
Byzantine Iconoclasm, Chludov Psalter, 9th century.
Argument about icons before the emperor, in the Skylitzis Chronicle
Patriarch Germanos I of Constantinople with icons supported by angels