an anchoret, born at Rome in 350; died in 445. While a deacon of the Church of Rome, he was chosen, in 383, by Pope Damasus as tutor of Arcadius, the elder son of Theodosius. As Arsenius did not succeed in the education of this prince, he quitted the court, and penetrated into the desert of Said (Thebais), where he remained until his death. Arsenius is commemorated in the Roman martyrology on July 19 (Hoefer, Biographie Generale, ii, 369).
a monk of the Greek Church. lived in the first half of the 17th century, during the reign of Michael Feodorovitch. His most cherished desire was to introduce a reform into the old Church of Slavonia. He was finally regarded as a heretic, and banished by the patriarch Joseph to the monastery of Solowetz. See Hoefer, Nouv. Biog. Generale. s.v.