Ioustinianos 3 | Prosopography of the Byzantine Empire |
| Sex | M |
| Floruit | M VII |
| Dates | 668 (taq) / 669 (ob.) |
| PmbZ No. | 3557 |
| Locations | Sicily |
| Titles | Patrikios (office) |
| Textual Sources | Zonaras = Ioannis Zonarae Epitome Historiarum, libri XIII-XVIII, ed. Th. Büttner-Wobst, (Bonn, 1897) (history) |
Ioustinianos 3 was father of the future patriarch Germanos 8; a patrikios, he was one of those executed in 668/669 by the emperor Constantine IV (Konstantinos 2) for their involvement in the assassination of the emperor Constans II (Konstans 1): Zon. XIV 20. 2 (τὸν πατρίκιον Ἰουστινιανὸν τὸν πατέρα Γερμανοῦ τοῦ πατριάρχου). He was presumably in Sicily and supported the proclamation as emperor of Mizizios 1.
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