Ioannes 573 | Prosopography of the Byzantine Empire |
| Floruit | VIII |
| PmbZ No. | 3013 |
| Titles | Basilikos spatharios (dignity) |
| Seal Sources | Panchenko, B. A., Katalog Molivdovulov (Sofia, 1908); repr. from Izvestiia Russkogo archeologicheskogo instituta v Konstantinopole (1903, 1904, 1908) |
Ioannes 573 was basilikos spatharios; owner of a seal dateable to the eighth century: Panchenko, Katalog 104. The name and title read: Ἰωάννῃ βασιλικῷ σπαθαρίῳ.
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