Third Council of Constantinople

Third Council of Constantinople
Name	Third Council of Constantinople
Caption	Sixth Ecumenical Council convened in Constantinople
Date	680–681
Location	Constantinople
Convoked by	Constantine IV
Participants	Patriarchs of Rome, Constantinople, Alexandria, Antioch, Jerusalem
Called for	Christological disputes over Monothelitism and Monoenergism
Major outcome	Condemnation of Monothelitism; definition of two wills of Jesus
Number of canons	18

Third Council of Constantinople was the sixth ecumenical council of the Christian Church convened in Constantinople under Emperor Constantine IV during the reign of the Byzantine Empire. The council addressed doctrinal controversies stemming from Council of Chalcedon, Monophysitism, and the contested teachings of Sergius I of Constantinople and Pope Honorius I, producing canons that shaped relations among Rome, Constantinople, Alexandria, Antioch, and Jerusalem. Its decrees influenced subsequent interactions between the Eastern Orthodox Church, Roman Catholic Church, and various Eastern Christian communities.

Background and context

The council arose amid post-Council of Chalcedon tensions involving Chalcedonian Christianity, Monophysitism, and political pressures from emperors such as Heraclius and Constans II who sought unity with Syriac and Coptic populations, while figures like Sergius of Constantinople promoted compromises leading to Monoenergism and Monothelitism; these controversies engaged theologians including Pyrrhus of Constantinople, Pope Martin I, Maximus the Confessor, and Sophronius of Jerusalem. The backdrop included military strains from the Arab–Byzantine wars, diplomatic negotiations with Islamic Caliphate authorities, and imperial attempts at ecclesiastical settlement exemplified by documents like the Typos and interventions by Constans II and Constantine IV.

Convening and participants

Emperor Constantine IV summoned the council in 680, inviting representatives and legates from major sees such as Rome, Constantinople, Alexandria, Antioch, and Jerusalem, while papal legates of Pope Agatho attended alongside Eastern prelates including Patriarchs of Constantinople and Patriarch John of Antioch; notable theologians present or represented included Maximus the Confessor (represented), Sophronius of Jerusalem, and clerics from Syria and Egypt. Delegations comprised bishops, monks, and imperial officials drawn from provincial centres like Thessalonica, Nicomedia, Ephesus, and Sardis, and the council sat in sessions at imperial halls in Constantinople with participation mediated by synodal procedures familiar from earlier synods including First Council of Nicaea and Council of Ephesus.

Proceedings and canons

The council met in multiple sessions from 680–681, hearing doctrinal filings, imperial rescripts, and letters such as those from Pope Agatho, and evaluating theological positions attributed to figures like Sergius I of Constantinople, Pyrrhus of Constantinople, and Pope Honorius I. Proceedings included examination of the Typos, adjudication on the culpability of proponents of Monothelitism, and formulation of eighteen canons addressing episcopal jurisdiction, liturgical order, and doctrinal definitions; these canons drew on precedents from Council of Chalcedon, Council in Trullo, and canonical collections circulating in Byzantium. The council issued formal anathematizations of leading advocates of Monothelitism and affirmed procedural norms for appeals to Rome and the role of patriarchal authority in disputes involving Alexandria and Antioch.

Christological decisions and outcomes

Doctrinally, the council rejected Monothelitism and Monoenergism, affirming that Jesus possesses two wills (divine and human) corresponding to two energies, thereby articulating a stance rooted in the Christology of Council of Chalcedon and the theological work of Maximus the Confessor and Pope Martin I. The council pronounced anathemas against proponents including Sergius I of Constantinople (posthumously implicated), Pyrrhus of Constantinople, Pope Honorius I (condemned for ambiguous endorsement), and others associated with Monothelite formulations, while endorsing theological distinctions used by Leontius of Byzantium and John of Damascus in defense of dyothelitism. These decisions sought to preserve continuity with Chalcedonian definitions endorsed at Rome and Constantinople while resolving pastoral tensions in Syria and Egypt.

Reception and impact on Church and state

The council’s condemnations reverberated through Byzantine ecclesiastical politics, affecting relations between Constantinople and Rome and generating contested responses among Coptic and Syriac communities, where some local hierarchies retained Monophysite sympathies tied to the memory of councils like Ephesus. Imperial implementation under Constantine IV involved deposition of accused clergy and reinforcement of orthodox appointments in sees such as Alexandria and Antioch, while papal endorsement from Pope Agatho strengthened ties between Western and Eastern hierarchs. The council also influenced legal and canonical practice within the Byzantine Empire and contributed to later schisms and dialogues involving Oriental Orthodox Churches, Eastern Orthodox Church, and the Roman Papacy.

Legacy and historical assessment

Historians view the council as a decisive reaffirmation of Chalcedonian dyophysite and dyothelite doctrine, credited to theological defenders such as Maximus the Confessor, Pope Martin I, and Sophronius of Jerusalem, while debates persist regarding the council’s treatment of figures like Pope Honorius I and implications for papal infallibility discussions involving later episodes like the First Vatican Council. Its legacy includes canonical precedents cited in later synods and enduring impact on Christological formulations in Eastern Orthodox theology and Roman Catholic theology; scholarly assessment ranges from praising its doctrinal clarity to critiquing its political entanglements with emperors such as Constans II and Constantine IV. The council remains central to studies of late antique theology, imperial ecclesiastical policy, and the evolution of relations among Rome, Constantinople, and the Oriental Orthodox traditions.

Category:Ecumenical councils Category:7th century in the Byzantine Empire