Heresiarch
Christian theological term for someone who propagates heretical doctrine

In Christian theology, a heresiarch (also hæresiarch, according to the Oxford English Dictionary; from Greek: αἱρεσιάρχης, hairesiárkhēs via the late Latin haeresiarcha) or arch-heretic is an originator of heretical doctrine or the founder of a sect that sustains such a doctrine.
List of heresiarchs
Nicholas of Antioch, one of the Seven Deacons, founder of Nicolaism, condemned in the Book of Revelation. 1st century
Simon Magus, the purported founder of Gnosticism. 1st century
Montanus, founder of Montanism, mid to late 2nd century
Theodotus of Byzantium, propounder of Adoptionism, late 2nd century
Valentinus, founder of Valentinianism, 2nd century
Sabellius, founder of Sabellianism, 3rd century
Marcion, founder of Marcionism, 2nd century
Basilides, founder of Basilidianism, 2nd century
Novatian, founder of Novatianism, condemned by Pope Cornelius. 3rd century
Arius, founder of Arianism, condemned by the 1st council of Nicaea. 3rd and 4th centuries
Donatus Magnus, founder of Donatism, condemned by Augustine of Hippo. 4th century
Apollinaris of Laodicea, founder of Apollinarianism, condemned at the 1st Council of Constantinople. 4th century,
John Philoponus (6th century), founder of tritheism, condemned at the 3rd Council of Constantinople
Macedonius I of Constantinople, founder of Macedonianism, condemned at the 1st Council of Constantinople. 4th century
Aëtius & Eunomius, leaders of Anomoeanism, condemned at the 1st Council of Constantinople. 4th century
Bonosus of Serdica, propounder of Antidicomerianism, condemned by Augustine of Hippo.
The public source identifies “Heresiarch” as christian theological term for someone who propagates heretical doctrine. This brief keeps that definition visible, then builds a research path around Heresiarch, Christian and theological.
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This entry incorporates text from “Heresiarch” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.