Pope Sisinnius (87º): Biography, Pontificate & Legacy
Pontificate: 15 January 708 –4 February 708
Sisinnius was the 87th pope of the Catholic Church, reigning 15 January 708 –4 February 708 during late antiquity. Subject of the Rashidun Caliphate.
Who Was Pope Sisinnius?
This biography of Sisinnius (87º) 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.
Early Life & Background
Born Sisinnius, he entered a world shaped by politics and piety very different from today's global Church.
Historical Context
Sisinnius 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 (15 January 708 –4 February 708) centered on governance during late antiquity. Was of Syrian ethnicity.
Papal Acts & Achievements
Sisinnius 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
- 87th pope of the Catholic Church
- Pontificate: 15 January 708 –4 February 708
- Shepherded the Church during late antiquity
- Successor of St. Peter in the official Catholic list
Legacy in the Catholic Church
Sisinnius remains pope 87º in the Annuario Pontificio. 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 Sisinnius helps Catholics see how the Holy Spirit guided the Church through late antiquity — with human weakness and grace intertwined. 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
Sisinnius followed Pope John VII (86º) in the unbroken line of apostolic succession from St. Peter. Upon his death or resignation, he was succeeded by Pope Constantine (88º), 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.