Pope Saint Gregory III was pope

Pope

The Pope is the Bishop of Rome, a position that makes him the leader of the worldwide Catholic Church . In the Catholic Church, the Pope is regarded as the successor of Saint Peter, the Apostle...

 from 731 to 741. A Syrian

Syriacs

Syriac may refer to:* Syriac alphabet* Syriac language* Syriac Christians* Syriac Christianity, the churches using Syriac as their liturgical language* Assyrian/Chaldean/Syriac people, adherents of Syriac Christianity-See also:...

 by birth, he succeeded Gregory II

Pope Gregory II

Pope Saint Gregory II was pope from May 19, 715 to his death on February 11, 731, succeeding Pope Constantine. Having, it is said, bought off the Lombards for thirty pounds of gold, Charles Martel having refused his call for aid, he used the tranquillity thus obtained for vigorous missionary...

 in March 731. His pontificate, like that of his predecessor, was disturbed by the iconoclastic

Iconoclasm

Iconoclasm is the deliberate destruction of religious icons and other symbols or monuments, usually with religious or political motives. It is a frequent component of major political or religious changes...

 controversy in the Byzantine Empire

Byzantine Empire

The Byzantine Empire was the Eastern Roman Empire during the periods of Late Antiquity and the Middle Ages, centred on the capital of Constantinople. Known simply as the Roman Empire or Romania to its inhabitants and neighbours, the Empire was the direct continuation of the Ancient Roman State...

, in which he vainly invoked the intervention of Charles Martel

Charles Martel

Charles Martel , also known as Charles the Hammer, was a Frankish military and political leader, who served as Mayor of the Palace under the Merovingian kings and ruled de facto during an interregnum at the end of his life, using the title Duke and Prince of the Franks. In 739 he was offered the...

.
Elected by popular acclamation, he was the last pope to seek the Byzantine

Byzantine Empire

The Byzantine Empire was the Eastern Roman Empire during the periods of Late Antiquity and the Middle Ages, centred on the capital of Constantinople. Known simply as the Roman Empire or Romania to its inhabitants and neighbours, the Empire was the direct continuation of the Ancient Roman State...

 exarch

Exarch

In the Byzantine Empire, an exarch was governor with extended authority of a province at some remove from the capital Constantinople. The prevailing situation frequently involved him in military operations....

's mandate. Gregory immediately appealed to the Byzantine Emperor Leo III

Leo III the Isaurian

Leo III the Isaurian or the Syrian , was Byzantine emperor from 717 until his death in 741...

 to moderate his position on the iconoclastic controversy. When this elicited no response, Gregory called a synod

Synod

A synod historically is a council of a church, usually convened to decide an issue of doctrine, administration or application. In modern usage, the word often refers to the governing body of a particular church, whether its members are meeting or not...

 in November 731, the latter decided to bring the Pope under control. This included appropriating papal territories, and transferring ecclesiastical jurisdictions to the Patriarch of Constantinople

Patriarch of Constantinople

The Ecumenical Patriarch is the Archbishop of Constantinople – New Rome – ranking as primus inter pares in the Eastern Orthodox communion, which is seen by followers as the One, Holy, Catholic, and Apostolic Church....

.

Gregory's support of the empire led him to help contribute to the recapture of Ravenna

Ravenna

Ravenna is the capital city of the Province of Ravenna in the Emilia-Romagna region of Italy and the second largest comune in Italy by land area, although, at , it is little more than half the size of the largest comune, Rome...

 after it had fallen to the Lombards

Lombards

The Lombards , also referred to as Longobards, were a Germanic tribe of Scandinavian origin, who from 568 to 774 ruled a Kingdom in Italy...

 in 733. However, he also sought to fortify Rome and seek alliance with opponents of the Lombard monarch Liutprand

Liutprand, King of the Lombards

Liutprand was the King of the Lombards from 712 to 744 and is chiefly remembered for his Donation of Sutri, in 728, and his long reign, which brought him into a series of conflicts, mostly successful, with most of Italy. He profited by Byzantine weakness to enlarge his domains in Emilia and the...

 and then from the Franks

Franks

The Franks were a confederation of Germanic tribes first attested in the third century AD as living north and east of the Lower Rhine River. From the third to fifth centuries some Franks raided Roman territory while other Franks joined the Roman troops in Gaul. Only the Salian Franks formed a...

. He sent ambassadors to Charles Martel

Charles Martel

Charles Martel , also known as Charles the Hammer, was a Frankish military and political leader, who served as Mayor of the Palace under the Merovingian kings and ruled de facto during an interregnum at the end of his life, using the title Duke and Prince of the Franks. In 739 he was offered the...

, who made no response.

Gregory promoted the Church in northern Europe

Northern Europe

Northern Europe is the northern part or region of Europe. Northern Europe typically refers to the seven countries in the northern part of the European subcontinent which includes Denmark, Estonia, Latvia, Lithuania, Norway, Finland and Sweden...

, such as the missions of Saint Boniface

Saint Boniface

Saint Boniface , the Apostle of the Germans, born Winfrid, Wynfrith, or Wynfryth in the kingdom of Wessex, probably at Crediton , was a missionary who propagated Christianity in the Frankish Empire during the 8th century. He is the patron saint of Germany and the first archbishop of Mainz...

 in Germany

Germany

Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 and Willibald in Bohemia

Bohemia

Bohemia is a historical region in central Europe, occupying the western two-thirds of the traditional Czech Lands. It is located in the contemporary Czech Republic with its capital in Prague...

. He also bestowed palliums on Egbert of York and Tatwine, Archbishop of Canterbury

Archbishop of Canterbury

The Archbishop of Canterbury is the senior bishop and principal leader of the Church of England, the symbolic head of the worldwide Anglican Communion, and the diocesan bishop of the Diocese of Canterbury. In his role as head of the Anglican Communion, the archbishop leads the third largest group...

. He also beautified Rome

Rome

Rome is the capital of Italy and the country's largest and most populated city and comune, with over 2.7 million residents in . The city is located in the central-western portion of the Italian Peninsula, on the Tiber River within the Lazio region of Italy.Rome's history spans two and a half...

 and supported monasticism

Monasticism

Monasticism is a religious way of life characterized by the practice of renouncing worldly pursuits to fully devote one's self to spiritual work...

.

He is celebrated on November 28.