- Parent Category: Orthodox Terminology
- Category: Glossary S
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SAINT CYRIL - Patriarch of Alexandria ( 444). St. Cyril, commemorated on January 18 and June 9, was the leader in the defense of Orthodoxy against the Nestorians, and was a firm defender of the veneration of the Virgin Mary as Theotokos. He was especially prominent in the deliberations of the Third Ecumenical Council.