Written by Guide Catholic
Pope St. Zachary (91º): Biography, Pontificate & Legacy
Pontificate: 3 December 741 –15 March 752 · Origin: Santa Severina, Império Bizantino · Birth name: Zacharias

St. Zachary was the 91st pope of the Catholic Church, reigning 3 December 741 –15 March 752 during late antiquity. (Eastern) Roman citizen. The Catholic Church venerates him as a saint.
Who Was Pope Zachary?
Among the 267 popes, Zachary is number 91, remembered for the years 3 December 741 –15 March 752 in late antiquity. (Eastern) Roman citizen. Use the sections below to move from a one-line summary of Zachary to a usable historical and spiritual picture. Catholics also honor him as a saint whose intercession remains part of living devotion.
Early Life & Background
Before election he was known as Zacharias. Born circa 679 Sancta Severina, Calabria, Eastern Roman Empire, he entered a world shaped by politics and piety very different from today's global Church.
Historical Context
Zachary (#undefined) governed amid imperial transition, invasions, and debates over Christ's nature — Rome's bishop increasingly seen as a guardian of orthodoxy for the wider Church.
Pontificate & Key Events
The pontificate (3 December 741 –15 March 752) centered on governance during late antiquity. (Eastern) Roman citizen. Was of Greek ethnicity. Built the church of Santa Maria sopra Minerva.
Papal Acts & Achievements
Acts associated with Zachary (#91, 3 December 741 –15 March 752) still draw historians and Catholics who want more than a one-line summary. His reign remains a link in the succession now counted at 267 popes.
Key Highlights
- 91st pope of the Catholic Church
- Pontificate: 3 December 741 –15 March 752
- Venerated as a saint in the Catholic Church
- Shepherded the Church during late antiquity
- Successor of St. Peter in the official Catholic list
Legacy in the Catholic Church
St. Zachary remains pope 91º in the Annuario Pontificio. The Church still points to Zachary's virtues for imitation. Set against late antiquity, Zachary's choices show both the limits of any one pontiff and the continuity of the office he held.
Why Catholics Study This Pope Today
Place Zachary on your mental map: 91º successor of Peter, reigning 3 December 741 –15 March 752, formed by late antiquity. Because the Church venerates Zachary, you may seek his intercession and check his feast in the Martyrology or local calendar. Begin with this documented note: (Eastern) Roman citizen. Compare Zachary with the biographies of his predecessor and successor linked below to see reform, rupture, or quiet continuity.
Place in the Line of Succession
St. Zachary followed Pope St. Gregory III (90º, 18 March 731 –28 November 741) after a transition shaped by the politics and piety of their shared century. He was followed by Pope Stephen II (92º, 26 March 752 –26 April 757), whose biography continues the chain on Guide Catholic. For the full chronological map, see our complete list of all 267 popes — then read neighboring biographies for contrast, not only continuity.