Ioannes 542 | Prosopography of the Byzantine Empire |
| Floruit | VII |
| PmbZ No. | 2787 |
| Religion | Christian |
| Occupation | Hegoumenos |
| Titles | Hegoumenos, unknown (office) |
| Seal Sources | Zacos, G. and Veglery, A., Byzantine Lead Seals, vol. I (in 3 parts) (Basel, 1972). |
Ioannes 542 was possibly hegoumenos; owner of a seal dateable to the seventh century: Zacos and Veglery 1242. The reading of the monogram is uncertain but it can be interpreted as: Ἰωάννου ἡγουμένου.
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