Isaac I of Optina
Schema-archimandrite Isaac I of Optina (Russian: Схиархимандрит Исаакий Антимонов), or Ivan Ivanovich Antimonov before tonsure, was the superior of Optina Hermitage from 1862 to 1894. Elder Isaac is venerated as a saint in the Eastern Orthodox Church.[1][2] References
Further reading
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