Saints Cyril and Methodius
9th-century Byzantine Christian theologians and missionaries
Feast: 14 February (current Roman calendar, memorial) · 7 July (1962 Missal, III class)
Who they were
The brothers Methodius (born Michael, 825) and Cyril (born Constantine, 827) came from Thessalonica. Methodius became governor of a Byzantine province; Cyril, highly educated at Constantinople, turned down a career at court. The emperor Michael III sent them first to the Khazars and, in 863, to Great Moravia, to preach in the Slavs' own language.
To give the Slavs the Scriptures and the liturgy they invented a new alphabet, the Glagolitic, from which the Cyrillic script descends. The Pope received them in Rome in procession. Cyril, who had become a monk, died there on 14 February 869; Methodius was ordained bishop, continued the mission through hostility and misunderstanding, and died in 885.
The miracles
There was never a formal cause: the brothers have been honoured as saints since the ninth century. On 31 December 1980 St John Paul II proclaimed them co-patrons of Europe.
Why that counted as sanctity
Cyril and Methodius brought the Gospel to the Slav peoples in their own tongue, giving them an alphabet so that they could read God's word and pray in their own language.
Connected on this site
- Methodius of Thessaloniki Saint one of this group
- Saint Cyril the Philosopher Saint one of this group
- Angelário Saint“Saint Angelario was one of the disciples of Saints Cyril and Methodius who continued their mission of evangelising the Slavic peoples.” — this site's research
- Boris I of Bulgaria Saint“When in 885 the disciples of Saints Cyril and Methodius were banished from Great Moravia, Boris I gave them refuge and assistance, which saved the Glagolitic script and later promoted the development of the Cyrillic script and of Slavic literature.” — Wikipedia
- Clement of Ohrid Saint“Together with him are commemorated the holy bishops Gorazd, Naum, Sava and Angelar, who continued in Bulgaria the work of Saints Cyril and Methodius.” — this site's research
- John Paul II Saint“On 31 December 1980 St John Paul II proclaimed them co-patrons of Europe.” — this site's research
- Saint Angelar Saint“He was one of the most prominent disciples of Saints Cyril and Methodius.” — Wikipedia
- Saint Cyril the Philosopher Saint“In 1880 Pope Leo XIII extended the feast of Saints Cyril and Methodius to the whole Church.” — this site's research
- Saint Gorazd Saint“Together with him are commemorated the holy bishops Gorazd, Naum, Sava and Angelar, who continued in Bulgaria the work of Saints Cyril and Methodius.” — this site's research
- Saint Naum Saint“Together with him are commemorated the holy bishops Gorazd, Naum, Sava and Angelar, who continued in Bulgaria the work of Saints Cyril and Methodius.” — this site's research
- Saint Valentine Saint“The official Liturgical Calendar for the Dioceses of the United States identifies February 14 as the memorial of Saints Cyril and Methodius.” — Wikipedia
- Vatican News - Saint of the day (Italian): Saints Cyril and Methodius
- Martirologio Romano — 14, febbraio — Saints Cyril and Methodius are celebrated in the Roman calendar on 14 February and were declared co-patrons of Europe by John Paul II (Egregiae virtutis, 1980).
- Wikidata Q239925 — dates, feast day and identifiers (CC0)
- English Wikipedia — Cyril and Methodius (CC BY-SA)
Checked against the sources listed on 21 September 2026. Corrections welcome.