Also known as
Apostle of the Slavs
Apostle of the Southern Slavs
Brother of Saint Cyril. Greek nobility. Studied at the University of Constantinople, and taught philosophy there. Priest. Sent with Cyril by the emperor in 861 to convert the Jewish Khazars of Russia, a mission that was successful, and which allowed him to learn the Khazar's language. In 863, sent with Cyril to convert Moravians in their native tongue. Though some western clergy opposed their efforts and refused to ordain their candidates for the priesthood, they did good work. Helped develop an alphabet for the Slavonic language that eventually became what is known as the Cyrillic today. After initial criticism for their use of it, they achieved approval of the Liturgy in the Slavonic language. Bishop. Evangelized in Moravia, Bohemia, Pannonia, and Poland. Baptized Saint Ludmilla and Duke Boriwoi. Archbishop of Velehred, Czechoslovakia, but deposed and imprisoned in 870 due to the opposition of German clergy with his work. Often in trouble over his use of Slavonic in liturgy, some claiming he preached heresy; repeatedly cleared of charges. Translated the Bible into the Slavonic languages. Pioneered the use of local and vernacular languages in liturgical settings.
826 at Thessalonica, Greece
6 April 885 at Moravia (Czechoslovakia)
unity of the Eastern and Western Churches