The Synod of Tarnovo was a council of the Bulgarian Church, at that time in union with Rome, held at

Veliko Tarnovo Veliko Tarnovo ( bg, Велико Търново, Veliko Tărnovo, ; "Great Tarnovo") is a town in north central Bulgaria and the administrative centre of Veliko Tarnovo Province. Often referred as the "''City of the Tsars''", Veliko Tarnovo ...

in 1211. Emperor (or Tsar)

Boril of Bulgaria Boril ( bg, Борил) was the emperor (tsar) of Bulgaria from 1207 to 1218. He was the son of an unnamed sister of his predecessor, Kaloyan and Kaloyan's brothers, Peter II and Ivan Asen I, who had restored the independent Bulga ...

convoked it to condemn

Bogomilism Bogomilism ( Bulgarian and Macedonian: ; sh-Latn-Cyrl, separator=" / ", bogumilstvo, богумилство) was a Christian neo-Gnostic or dualist sect founded in the First Bulgarian Empire by the priest Bogomil during the reign of Tsar P ...

. The decisions of the synod were included in a document, now known as the '' Book of Boril''.

References

Sources

* * 13th century in Bulgaria Bogomilism 1211 in Europe {{Gnosticism-stub