The Bogomils were members of a dualist Christian movement that arose in the First Bulgarian Empire in the tenth century, traditionally founded by a priest named Bogomil. They taught that the visible world was the work of an evil power, rejected much of the church's ritual and hierarchy, and spread through the Balkans and Byzantium, influencing later dualist groups such as the Cathars.
Bogomils at a glance
| Founded | 10th century, First Bulgarian Empire |
|---|---|
| Founder | The priest Bogomil (name means roughly "dear to God") |
| Reign | Tsar Peter I of Bulgaria (927-969) |
| Main source | Treatise of Cosmas the Priest |
| Beliefs | Dualism; rejection of sacraments, icons and church hierarchy |
| Later influence | Byzantine Bogomils, Cathars of Western Europe |
Origins
The movement takes its name from Bogomil, a village priest who preached in Bulgaria during the reign of Tsar Peter I (927-969). Almost nothing is known about his life beyond his teaching. Bulgaria had officially adopted Christianity only in the 860s, and historians have suggested that tensions between a wealthy church, an often burdened peasantry, and Byzantine cultural influence created fertile ground for a reform movement.
The Bogomils drew on older dualist currents present in the region, including the Paulicians, an Armenian-Byzantine sect some of whose members had been resettled in Thrace. Many scholars also see distant echoes of Manichaeism, though a direct line of descent is debated.
Cosmas the Priest, the movement's earliest critic, complained that the Bogomils appeared humble and pious in public, fasting and praying, while teaching people to disobey their lords and to despise the church. His description suggests that the movement attracted ordinary villagers as well as some clergy, and that it spread by preaching in small groups rather than through public institutions.
Beliefs and Practice
The Bogomils taught a form of dualism. In the version reported by Byzantine writers, God had two sons: the elder, Satanael, rebelled and created the material world and the human body, while the younger, Christ, was sent to free the soul. Matter was therefore associated with evil, and the soul with the divine.
From this basis the Bogomils rejected much of the established church. They refused to venerate icons, the cross and relics, rejected infant baptism and the Eucharist as understood by the church, and regarded church buildings and priests as unnecessary. They generally rejected most of the Old Testament, while honoring the Gospels, and emphasized the Lord's Prayer, which they recited many times a day. Committed members, often called the "perfect", lived ascetically, avoiding meat, wine and marriage. Our knowledge of these teachings comes mostly from hostile opponents, so historians treat details with caution.
Key Sources
- Cosmas the Priest, a Bulgarian cleric, wrote a treatise against the Bogomils in the tenth century, the earliest detailed description of the movement.
- Euthymius Zigabenus, a Byzantine theologian, described Bogomil doctrine in his Dogmatic Panoply in the early twelfth century.
- Anna Komnene's Alexiad recounts her father Alexios I Komnenos's trial of the Bogomil leader Basil the Physician.
- The Interrogatio Iohannis (Secret Supper), an apocryphal text used by Bogomils and Cathars, preserves dualist teaching from inside the movement.
Spread and Persecution
By the eleventh century Bogomil ideas had reached Constantinople and Asia Minor. Around the beginning of the twelfth century Emperor Alexios I Komnenos had the Bogomil leader Basil the Physician arrested; according to Anna Komnene, Basil refused to recant and was burned in the Hippodrome. In Bulgaria, Tsar Boril convened a church council in 1211 that condemned the Bogomils. In Serbia, the ruler Stefan Nemanja also moved against dualist heretics in the late twelfth century.
The relationship between the Bogomils and the independent Church of Bosnia is a long-standing scholarly debate. Older historians often identified the Bosnian church as Bogomil, while many modern scholars argue that it was a more orthodox, if schismatic, local church. The popular claim that medieval Bosnian tombstones (stecci) are Bogomil monuments is likewise disputed.
Influence on the Cathars
In the twelfth century dualist teachings spread westward to Italy and southern France. Contacts between Balkan dualists and Western groups are documented, and the Cathars of Languedoc shared many beliefs with the Bogomils, including the opposition of spirit and matter and the distinction between ordinary believers and "perfect" members. A meeting at Saint-Felix-de-Caraman, reportedly attended by a Bogomil bishop named Nicetas, is often cited, though the authenticity of the document describing it has been questioned.
Legacy
Bogomilism declined after the Ottoman conquest of the Balkans in the fourteenth and fifteenth centuries. In modern Bulgaria the Bogomils have sometimes been portrayed as early social reformers or symbols of national identity, an interpretation that goes beyond the medieval evidence. For historians of religion they remain one of the most important links in the chain of medieval dualist movements that also includes the Paulicians and Cathars, and they are frequently discussed alongside ancient Gnostic groups such as the Ophites.
Related entries
Frequently asked questions
What did the Bogomils believe?
The Bogomils believed the material world was created by an evil power, often called Satanael, while the soul came from the good God. They rejected icons, church sacraments, most of the Old Testament and the clerical hierarchy, valued the Lord's Prayer, and encouraged strict asceticism for their most committed members.
Were the Bogomils and the Cathars the same?
They were separate movements, but closely related. Dualist ideas spread from the Balkans to Italy and France in the twelfth century, and the Cathars shared key Bogomil teachings. Historians generally see the Bogomils as an important source of Cathar doctrine, though the exact channels of contact are debated.
Why were the Bogomils persecuted?
Their rejection of church sacraments, clergy and icons challenged both ecclesiastical and state authority in Bulgaria and Byzantium. Church councils condemned them as heretics, and Byzantine emperors prosecuted their leaders. The most famous case was Basil the Physician, burned in Constantinople around the beginning of the twelfth century.
Sources and further reading
This entry replaces an article from the original Mystica encyclopedia (online since 2001). It was rewritten from the sources above by The Mystica Editorial Team under our editorial standards. Last reviewed: September 30, 2026.