Reigned from 772 to 795. Founder of the temporal power of the popes; born in Rome, Italy; died there. Elected when the Lombards were threatening to dominate all Italy, he summoned Charlemagne to assist him in averting this catastrophe, and the result of his appeal was the Donation of Charlemagne, for eleven centuries the basis of the temporal sovereignty of the popes. The Lombard Kingdom was vanquished, and the papacy delivered from its persistent foe and left free to promote peace and order in Christendom. Adrian presided over the Seventh General Council (Nicea, 787), in which the Catholic doctrine regarding images was expounded.