Konstantinos 257 | Prosopography of the Byzantine Empire |
| Sex | M |
| Floruit | M/L IX |
| PmbZ No. | 4018 |
| Locations | Opsikion |
| Titles | Basilikos strator (office); Komes of the Korte, Opsikion (office) |
| Seal Sources | Zacos, G. and Veglery, A., Byzantine Lead Seals, vol. I (in 3 parts) (Basel, 1972). |
Konstantinos 257 was basilikos strator and komes of the korte of the Opsikion; owner of a seal dateable to the second half of the ninth century: Zacos and Veglery 3096. The name and titles read: Κωνσταντίνῳ βασιλικῷ στράτορι καὶ κόμητι τῆς κόρτης τοῦ Ὀψικίου. Possibly to be identified with Konstantinos 256; cf. Zacos and Veglery, Seals, p. 1738.
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