Born to the Roman nobility; son of Marinus; related to PopeAdrian I and PopeLeo III.
Deacon.
97th pope, reigning for only seven months.
Followed and enforced the policies of his predecessor Pope Saint Leo III.
For political and military reasons, he ordered the people of Rome to swear loyalty to the Frankish Louis the Pious.
Crowned Louis as king.
Brought political exiles back to Rome.