Theodore I
Jerusalem·7th century·Early Church·Diocesan Clergy
Pope Theodore I, bishop of Rome from 642 to 649, was a Greek from Jerusalem whose pontificate was dominated by the struggle against Monothelitism. He actively opposed the Ecthesis of Heraclius and refused recognition to the patriarch of Constantinople, Paul II, due to the circumstances of his predecessor's replacement. Theodore planned the Lateran Council of 649 to condemn the Ecthesis but died before its convocation.
Key Facts
- ›He was a Greek from Jerusalem, the only pope native to that city.
- ›His father, Theodore, was also a bishop in Jerusalem.
- ›He fled to Rome following the Muslim conquest of the Levant.
- ›His pontificate was dominated by the struggle against Monothelitism.
- ›He died before he could convene the Lateran Council of 649.
Monothelitism, Ecumenical Doctrine
Lateran Council of 649
- Refused To Recognize Paul Ii As Patriarch of Constantinople
- Pressed Emperor Constans Ii To Withdraw the Ecthesis of Heraclius
- Excommunicated Pyrrhus In 648
- Planned the Lateran Council of 649
Monothelitism, Ecthesis of Heraclius, Paul Ii, Patriarch of Constantinople, Pyrrhus I, Patriarch of Constantinople, Emperor Constans Ii, Exarch of Ravenna, Syrian Clergy, Muslim Conquest of the Levant, Old St. Peter's Basilica
About Theodore I
Pope Theodore I
Pope Theodore I (died May 14, 649) was the bishop of Rome from November 24, 642, to his death. His pontificate was largely defined by the significant theological and political struggle against Monothelitism, a doctrine that asserted Christ had only one will.
Life and Historical Context
According to the Liber Pontificalis, Theodore I was a Greek from Jerusalem, making him unique as the only pope to hail from that city. His father, also named Theodore, had served as a bishop in Jerusalem. Theodore I was among the many Syrian clergy who sought refuge in Rome following the Muslim conquest of the Levant. He was elevated to the rank of cardinal deacon possibly around 640 and later became a full cardinal under Pope John IV. His election as pope was supported by the exarch of Ravenna, who governed Italy on behalf of the Emperor in Constantinople.
Pontificate and Theological Stance
The central focus of Theodore I's papacy was the ongoing conflict with the proponents of Monothelitism. He notably refused to recognize Paul II as the patriarch of Constantinople, citing irregularities in the replacement of Paul's predecessor, Pyrrhus I. Theodore I actively pressed Emperor Constans II to revoke the Ecthesis of Heraclius, an imperial decree that supported Monothelitism. While these efforts had limited impact in Constantinople, they intensified opposition to the doctrine in the West. Pyrrhus I briefly recanted his Monothelite views in 645 but was later excommunicated in 648. Paul II was excommunicated in 649, leading to retaliatory actions such as the destruction of the Roman altar in the palace of Placidia and the exile or imprisonment of the papal apocrisiarius. In an attempt to resolve the issue, the emperor promulgated the Type of Constans, ordering the removal of the Ecthesis and seeking to end theological debate on the matter.
Legacy
Pope Theodore I planned to convene the Lateran Council of 649 to condemn the Ecthesis. However, he died before this could occur, and the council was instead held by his successor, Martin I. Theodore I was buried in Old St. Peter's Basilica. His feast day is observed on May 18 in the Eastern Orthodox Church. His papacy is remembered for its firm stance against Monothelitism and its role in the ongoing theological disputes of the era.
Source: Wikipedia ↗
Frequently Asked Questions
When was Pope Theodore I's pontificate?
Pope Theodore I served as the bishop of Rome from November 24, 642, until his death on May 14, 649.
What was Pope Theodore I's background?
According to the Liber Pontificalis, Theodore I was a Greek from Jerusalem, and his father had also been a bishop there. He is the only pope to have originated from that city and was part of the Syrian clergy who fled to Rome after the Muslim conquest of the Levant.
What were the main challenges during Pope Theodore I's papacy?
The primary focus of Theodore I's pontificate was the ongoing struggle against Monothelitism. He actively opposed the Ecthesis of Heraclius and refused to recognize Paul II as the patriarch of Constantinople.
Did Pope Theodore I convene any councils?
Theodore I planned the Lateran Council of 649 with the intention of condemning the Ecthesis. However, he died before the council could be convened, and his successor, Martin I, carried out the convocation instead.
Where is Pope Theodore I buried?
Pope Theodore I was buried in Old St. Peter's Basilica.
Related Popes

Adeodatus II
Pope Adeodatus II served as the bishop of Rome from 672 to 676. His pontificate, though obscure, was marked by efforts to improve churches and combat Monothelitism. He rejected synodical letters from the Patriarch of Constantinople, leading to his exclusion from diptychs there, and was active in monastic discipline.

Adeodatus I
Adeodatus I, also known as Deusdedit, served as the Bishop of Rome from 615 to 618. He was notable as the first priest elected pope since John II in 533 and is credited with introducing lead seals, or bullae, to papal documents. His pontificate saw a reversal of his predecessor's policy of filling administrative roles with monks, recalling clergy instead.
Benedict II
Pope Benedict II served as the bishop of Rome from June 26, 684, until his death on May 8, 685. During his brief pontificate, he worked to suppress Monothelitism and oversaw the restoration of numerous churches in Rome. He is also remembered for obtaining a decree from Emperor Constantine IV that altered the imperial confirmation process for popes.