Peter (? – October 666) was the

Ecumenical Patriarch of Constantinople The ecumenical patriarch ( el, Οἰκουμενικός Πατριάρχης, translit=Oikoumenikós Patriárchēs) is the archbishop of Constantinople (Istanbul), New Rome and '' primus inter pares'' (first among equals) among the heads of th ...

from 654 to 666. He was condemned as a heretic in the

Third Council of Constantinople The Third Council of Constantinople, counted as the Sixth Ecumenical Council by the Eastern Orthodox and Catholic Churches, as well by certain other Western Churches, met in 680–681 and condemned monoenergism and monothelitism as heretical a ...

. He was succeeded as ecumenical patriarch by

Thomas II of Constantinople Thomas II (? – 15 November 669) was the Ecumenical Patriarch of Constantinople from 667 to 669. He had been ecumenically preceded by Patriarch Peter of Constantinople. During the troubled times of the Christological disputes, he was Orthodox i ...

. Peter succeeded Patr. Pyrrhus who also was a Monothelite. In correspondence with Pope Vitalian of Rome following Vitalian's ascension to the see of Rome, Peter was noncommittal concerning Monothelitism, leading to a restoration of ecclesiastical intercourse between Rome and Constantinople. This resulted the addition of Vitalian's name on the diptychs of the church in Constantinople—the only name of a pope so entered between the reign of

Pope Honorius I Pope Honorius I (died 12 October 638) was the bishop of Rome from 27 October 625 to his death. He was active in spreading Christianity among Anglo-Saxons and attempted to convince the Celts to calculate Easter in the Roman fashion. He is chiefl ...

, who died in 638, and 677 when Patriarch

Theodore I Theodore I may refer to: * Patriarch Theodore I of Alexandria, Greek Patriarch of Alexandria (607–609) * Pope Theodore I (died 649) * Theodore I Calliopas, Exarch of Ravenna (643–645 and 653 – c. 666) * Patriarch Theodore I of Constantinopl ...

removed the pope's name prior to the

Sixth Ecumenical Council The Third Council of Constantinople, counted as the Sixth Ecumenical Council by the Eastern Orthodox and Catholic Churches, as well by certain other Western Churches, met in 680–681 and condemned monoenergism and monothelitism as heretical a ...

. At the council Peter was condemned as a heretic along with Patriarchs Sergius I, Pyrrhus I and Paul II all of Constantinople, Patriarch Cyrus of Alexandria, and

Theodore of Pharan Theodore of Raithu (fl. late 6th or early 7th century) was a Christian theologian considered the last of the Neo-Chalcedonians.. Theodore was a monk at Raithu on the Sinai Peninsula, active after 550. He may be identified with the Theodore who wa ...

References

7th-century patriarchs of Constantinople {{EasternOrthodoxy-bishop-stub