Theodore the Studite
A Montanist sect in Galatia, the Tascodrugites, is attested around 600 by Timothy of Constantinople and in the 9th century by Theodore the Studite. A sect called "Montanist" existed in the 8th century; the Emperor Leo III ordered the conversion and baptism of its members. These Montanists refused, locked themselves in their houses of worship, set the buildings on fire and perished.