He is content to accept dogmas from the Church; his interest is in the spiritual life as it should be led by monks.

(1631), p. 273) thought that this Mark was the monk who prophesied ten more years of life to the Emperor Leo VI in 900.

[1] Another view supported by the Byzantine Menaia[3] identifies him with the Egyptian monk mentioned in Palladius,[4] who lived in the fourth century.

The discovery and identification of a work by him against Nestorius by P. Kerameus[5] makes his period certain, as defended by Kunze.

[1] According to a brief entry in the "Great Synaxaristes" of the Eastern Orthodox Church, his feast day is observed on 20 May.