Isaac I of Optina explained

Schema-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.^{[1] [2]}

Further reading

• Belovidov, Agapitus (1995). Life of the Elder of Optina, Archimandrite Isaac Antimonov (in Russian). Optina Hermitage.

Notes and References

1. JanuaryApril 2022 . 2022 . Elder Isaac I of Optina . The Orthodox Word . St. Herman of Alaska Brotherhood . . 58 . 1–99 . 0030-5839.
2. Web site: 21 March 2023 . Complete Life of the Monk Isaac the Elder of Optina . Optina Pustyn . Optina Monastery . Russian.