Pope St. Gregory III (90º): Biography, Pontificate & Legacy
Pontificate: 18 March 731 –28 November 741
St. Gregory III was the 90th pope of the Catholic Church, reigning 18 March 731 –28 November 741 during late antiquity. Last pope to have been born outside Europe until the election of Francis in 2013. The Catholic Church venerates him as a saint.
Who Was Pope Gregory III?
This biography of St. Gregory III (90º) covers background, major events, and legacy in the line of St. Peter. During late antiquity, the Bishop of Rome exercised teaching, sanctifying, and governing authority for the universal Church. Catholics honor him as a saint whose intercession remains available to the faithful.
Early Life & Background
Born Gregorius, he entered a world shaped by politics and piety very different from today's global Church. Subject of the Umayyad Caliphate; last pope from Syria.
Historical Context
Gregory III governed the Church during late antiquity — an age of imperial transition, barbarian invasions, and fierce theological debate over the nature of Christ. Bishops of Rome were increasingly seen as guardians of orthodoxy for the entire Christian world.
Pontificate & Key Events
The pontificate (18 March 731 –28 November 741) centered on governance during late antiquity. Third pope to come from a Muslim country. Third pope to bear the same name as his immediate predecessor.
Papal Acts & Achievements
Gregory III left a distinct mark through decisions that historians still debate and Catholics still study. His reign contributed to the continuous apostolic succession now numbering 267 popes.
Key Highlights
- 90th pope of the Catholic Church
- Pontificate: 18 March 731 –28 November 741
- Venerated as a saint in the Catholic Church
- Last pope to have been born outside Europe until the election of Francis in 2013.
Legacy in the Catholic Church
St. Gregory III remains pope 90º in the Annuario Pontificio. The Church venerates his feast and holds up his virtues for imitation. Read against late antiquity, his pontificate shows how Providence works through imperfect ministers without abandoning the Barque of Peter.
Why Catholics Study This Pope Today
Studying St. Gregory III helps Catholics see how the Holy Spirit guided the Church through late antiquity — with human weakness and grace intertwined. You may ask Gregory III for intercession and look up his feast in the Roman calendar or Martyrology. Place this pope in context using our chronological list of all 267 popes and the biographies of his immediate predecessor and successor linked below.
Place in the Line of Succession
St. Gregory III followed Pope St. Gregory II (89º) in the unbroken line of apostolic succession from St. Peter. Upon his death or resignation, he was succeeded by Pope St. Zachary (91º), who continued the mission of shepherding the universal Church. Explore the full chronological chain in our complete list of all 267 popes, or read the biographies of neighboring pontiffs linked below.