and, as a result, he ordered that Peter's name not be mentioned in the Divine Liturgy while Peter remained alive. The schism between the Alexandrian and Antiochene churches lasted for almost a decade after Damian's death. Damian was very active in fighting views that he considered heretical, including not only tritheism, but also the Chalcedonians, Pope Leo's Tome, Bishop Julian of Halicarnassus, the Agnoetae, the Melitians, the Acephali, the Gaianites (supporters of a rival to Theodosius I), Stephen of Alexandria and Paul of Beth Ukame. The Barsanuphians split from the Acephali during the time of Damian and established their own episcopal hierarchy. Although most of Damian's writings are lost, he did influence many writers in his own time, such as John of Parallos, who, like Damian, focused on combating heresy. See also Tritheism References General Specific 7th-century deaths Coptic Orthodox saints 7th-century Christian saints Popes of the Byzantine Papacy 6th-century Coptic Orthodox popes of Alexandria Year of birth unknown 7th-century Coptic Orthodox popes of Alexandria