Isaac I of Optina
-archimandrite Isaac I of Optina, 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.
-archimandrite Isaac I of Optina, 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.