Ioannes 552 | Prosopography of the Byzantine Empire |
| Floruit | VII |
| PmbZ No. | 2853 |
| Seal Sources | Laurent, V., Les sceaux byzantins du médaillier Vatican (Vatican City, 1962) |
Ioannes 552 was the owner of a seal dateable to the seventh century: Laurent, Vat. 211. The text reads: Θεοτόκε βοήθει Ἰωάννου.
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