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Saints Cyril and Methodius

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Saints Cyril and Methodius

Cyril and Methodius were Byzantine Christian theologians and missionaries from Thessalonica. Their work among the Slavs included translating Christian texts into Old Church Slavonic and devising the Glagolitic alphabet.

Updated October 2026 · Facts checked 13 October 2026

Photo: Zahari Zograf, Public domain, via Wikimedia Commons

Translation work in Old Church Slavonic began
8631
Translation work in Old Church Slavonic began
Methodius died
8851
Methodius died
Named co-patrons of Europe
19801
Named co-patrons of Europe

Saints Cyril and Methodius

At a glance

At a glance
In Bulgarian Кирил и Методий
Born Cyril: 826 or 827; Methodius: 815–820, Thessalonica
Died Cyril: 14 February 869, Rome; Methodius: 6 April 885
Known for Missionary work among the Slavs and the Glagolitic alphabet
Church roles Cyril was a priest; Methodius became Archbishop of Sirmium
Commemoration Declared co-patron saints of Europe in 1980

Source: Wikipedia: Cyril and Methodius1

Early lives

The brothers were born in Thessalonica, then part of the Byzantine Empire. Cyril was born Constantine and was reportedly the youngest of seven brothers. He later took the name Cyril when he became a monk in Rome shortly before his death. Methodius was born Michael and took his monastic name at the Monastery of Polychron. Their father, Leo, served as a Byzantine official. The brothers’ exact ethnic origins are unknown.1

Mission and writing

In 862, Prince Rastislav of Great Moravia asked the Byzantine emperor and patriarch to send missionaries. Cyril and Methodius went to the region and translated the Gospels and other liturgical texts into what is now called Old Church Slavonic. In 863, they began this translation work and promoted the new liturgy. They devised the Glagolitic alphabet, the first script used for Slavonic manuscripts. Their mission brought them into conflict with German churchmen who supported Latin worship.1

Legacy

The brothers travelled to Rome, where Pope Adrian II authorised the Slavic liturgy. Cyril died there in 869. Methodius continued the mission and served as archbishop, but faced imprisonment and opposition over his authority and the use of Slavonic in worship. After his death in 885, his followers were expelled from Great Moravia. Some found refuge in Bulgaria, where Clement and Naum helped establish schools for teaching theology in Slavonic. Cyril and Methodius are venerated as saints in several Christian traditions.1

Sources

  1. Wikipedia: Cyril and Methodius

Facts checked 13 October 2026. Prepared by InvestBulgaria for general information.

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