Ioannes 591 | Prosopography of the Byzantine Empire |
| Floruit | E/M IX |
| Dates | 8838 (taq) / 838 (tpq) |
| PmbZ No. | 3217 |
| Religion | Christian |
| Locations | Agauroi (Monastery of, near Prousa) (residence) |
| Occupation | Monk |
| Titles | Kellarites, Agauroi (Monastery of, near Prousa) (office) |
| Textual Sources | Vita Eustratii Hegumeni Monasterii Abgari in Monte Olympo, ed. A. Papadopoulos-Kerameus, Analekta Hierosolymitikês Stachyologias (St Petersburg, 1891-98), IV, pp. 367-400, V, pp. 408-410 (hagiography) |
Ioannes 591 was a monk and kellarites in the monastery of Agauros (near Prousa) (τὴν τοῦ κελλαρίτου διακονίαν πεπιστευμένος); he considered the city of Amorion to be impregnable and Eustratios 19 foretold that it would fall to the Arabs within two days; this occurred in 838: Vita Eustratii 21, p. 382.
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