Political and religious parties in Byzantium — Extremists and Moderates in Irene’s and Nicephorus’ reigns — Moderate policy of Methodius and the Studite Schism … Extremist and Moderate intrigues.
Dvornik’s chapter outline establishes Extremist-Moderate factionalism as the master structural category through which the entire Photian schism must be read, tracing it across successive reigns and schisms.
, The Photian Schism: History and Legend, 1948thesis