Christianity in the Middle Ages covers the history of Christianity from the fall of the Western Roman Empire. The end of the period is variously defined - depending on the context, events such as the
Brothers Cyril and Methodius bring Christianity to the Slavic peoples.
Mosaic of Justinian I in the church of San Vitale, Ravenna, Italy
Christians and Pagans, a painting by Sergei Ivanov
Saint Remigius baptises Clovis.
Catholic Church
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The Catholic Church, also called the Roman Catholic Church, is the largest Christian church, with an estimated 1.28 to 1.41 billion baptized members worldwide as of 2026. It consists of 24 autonomous
Christianity in the Middle Ages
…overrun by Germanic Franks in the early 5th century. The native inhabitants were persecuted until the Frankish King, Clovis I converted from paganism to Roman Catholicism in 496. Clovis insisted that his fellow nobles follow suit, strengthening his newly established kingdom by uniting the faith of the rulers with that…
St. Peter's Basilica in Vatican City, the largest Catholic church building in the world
The first use of the term "Catholic Church", meaning "universal church", was by the Church Father Saint Ignatius of Antioch in his Letter to the Smyrnaeans in c. 110 AD. Ignatius of Antioch also is credited with the first recorded use of the term Christianity ten years earlier, in c. 100 AD. He died in Rome, with his relics located in San Clemente al Laterano.
A c. 1481–1482 fresco by Pietro Perugino in the Sistine Chapel showing Jesus giving the keys of heaven to Saint Peter
The Last Supper in the Santa Maria delle Grazie Church in Milan, Italy, a late 1490s mural painting by Leonardo da Vinci, depicting the Last Supper of Jesus and his twelve apostles, depicts the final meal of Jesus before his crucifixion and death.