Adrian or Hadrian I, pope from 772 to 795, was the son of Theodore, a Roman nobleman.

Soon after his accession the territory ruled by the popes was invaded by Desiderius, king of the Lombards, and Adrian found it necessary to invoke the aid of the Frankish king Charlemagne, who entered Italy with a large army, besieged Desiderius in his capital of Pavia, took that town, banished the Lombard king to Corbie in France and took the title King of the Lombards. he pope, whose expectations had been aroused, had to content himself with some additions to the duchy of Rome, and to the Exarchate, and the Pentapolis. In his contest with the Eastern Roman Empire and the Lombard princes of Benevento, Adrian remained faithful to the Frankish alliance, and the friendly relations between pope and king were not disturbed by the difference which arose between them on the question of the veneration of images, to which Charlemagne and the bishops in Francia were strongly opposed, while Adrian favoured the views of the Eastern Church, and approved the decree of the second council of Nicaea (787), confirming the practice and excommunicating the iconoclasts. It was in connexion with this controversy that the Libri Carolini were written, to which Adrian replied by letter, anathematizing all who refused to venerate the images of Jesus Christ, or the Virgin Mary, or saints. Notwithstanding this, a synod, held at Frankfort in 794, anew condemned the practice, and the dispute remained unsettled at Adrian's death. An epitaph written by Charlemagne in verse, in which he styles Adrian "father," is still to be seen at the door of the Vatican basilica. Adrian restored some of the ancient aqueducts of Rome.

Preceded by:
Pope Stephen IV
List of popes Succeeded by:
Pope Leo III


Text from 1911 encyclopedia, since edited