Ioannes 157 | Prosopography of the Byzantine Empire |
| Sex | M |
| Floruit | M IX |
| Dates | 855 (tpq) / 863 (taq) |
| PmbZ No. | 3235 |
| Religion | Christian |
| Locations | All Saints (Monastery of, Constantinople); Kichonion (Monastery of) (officeplace); Constantinople (residence); Kichonion (Monastery of) (residence); Constantinople; Kichonion (Monastery of) |
| Occupation | Bishop; Hegoumenos |
| Titles | Bishop, unknown (office); Hegoumenos, Kichonion (office) |
| Textual Sources | Vita Antonii Iunioris (BHG 142 Addit.), ed. F. Halkin, "Saint Antoine le jeune et Pétronas le vainqueur", Anal. Boll. 62 (1944), pp. 210-225 (hagiography) |
Ioannes 157 was a bishop of an unknown see; he was later hegoumenos of the monastery of Kichonion (ἐπισκόπου Ἰωάννου, τοῦ εἰς τὸ Κιχώνιον γεγονότος ὕστερον ἡγουμένου); while a bishop he persuaded Antonios the younger (Antonios 12), then at All Saints monastery in Constantinople, to admit and receive as his disciple Iakobos 6: Vita Anton. Iun. (BHG 142 Addit.) 19. The date was not before 855, when Antonios emerged from seclusion (see Antonios 12) and before Antonios died in 863. Kichonion was on the Asiatic shore of the Bosphoros; see Vita Anton. Iun. (BHG 142 Addit.) p. 222, n. 2.
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