Claim: Dalmatius of Constantinople was married with a family before receiving a call to monastic life, he was also an opponent of the Nestorian heresy ( teachings of Christian theologian Nestorius).
Evidence: He was married with a family. Experiencing a call to monastic life, he received instruction from Isaac of Dalmatia. Like most of the city's monks, he was an opponent of the Nestorian heresy, and he played an important role in the downfall of Nestorius. The first meaning of the term is related to the original teachings of Christian theologian Nestorius (d. c. 450) who promoted specific doctrines in the fields of Christology and Mariology.