Konstantinos 303 | Prosopography of the Byzantine Empire |
| Floruit | VII |
| PmbZ No. | 3730 |
| Titles | Protos (office) |
| Seal Sources | Laurent, V., Le corpus des sceaux de l'empire byzatin, V, 1-3, L'église (Paris, 1963-72); II, L'administration centrale (Paris, 1981) |
Konstantinos 303 was a protos; owner of a seal dateable to the seventh century: Laurent, Corpus V 2, 1309. The name and title read: Κωνσταντίνου πρώτου. On protos, see ODB III, pp. 1746-47.
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