Tiberios 3 | Prosopography of the Byzantine Empire |
| Sex | M |
| Floruit | E VIII |
| Dates | 718 (taq) / 717 (tpq) |
| PmbZ No. | 849 |
| Locations | Constantinople; Constantinople (residence); Constantinople (birthplace) |
| Titles | Augustus (office); Emperor (office) |
| Textual Sources | Nicephorus, Breviarium Historiae, ed. C. Mango, Nikephoros, Patriarch of Constantinople: Short History; prev. ed. C. de Boor Nicephori ArchiepiscopiConstantinopolitani Opuscula Historica Leipzig 1880 (history); Theophanes Confessor, Chronographia, ed. C. de Boor, 2 vols. (Leipzig, 1883-85, repr. Hildesheim/NewYork, 1980); tr. and comm. C. Mango and R. Scott, The Chronicle of Theophanes Confessor, Oxford 1997 (chronicle); Zonaras = Ioannis Zonarae Epitome Historiarum, libri XIII-XVIII, ed. Th. Büttner-Wobst, (Bonn, 1897) (history) |
Tiberios 3 was a native of Constantinople: Theoph. AM 6210. Son of Gregorios Onomagoulos (Gregorios 5), he was called Basilios; in 717/718 he was one of the servants of the strategos of Sicily, Sergios 3, and was proclaimed emperor and renamed Tiberios when Sergios 3 rebelled against the emperor Leo III (Leo 3) during the siege of Constantinople (ἴδιον στέφουσι βασιλέα τῶν ὑπηρετῶν τινα Σεργίου, Βασίλειον τοὔνομα, ὑιὸν γεγονότα Γρηγορίου τὸ ἐπίκλην Ὀνομαγούλου, Τιβέριον αὐτὸν ὀνομάσαντες: Nic. Brev. de Boor 54, Mango 55:4-7; ἔστεψεν ἐκεῖσε ἴδιον βασιλέα ἐκ τῶν ἀνθρώπων αὐτοῦ, ὀνόματι Βασίλειον, Κωνσταντινουπολίτην, ὑιὸν Γρηγορίου τοῦ Ὀνομαγούλου, Τιβέριον αὐτὸν μετονομάσας: Theoph. AM 6210); he was later surrendered by the army to Paulos 7 together with those he had appointed to office; Nic. Brev. de Boor 54-55, Mango 55, Theoph. AM 6210 (Βασίλειον δὲ τὸν Ὀνομάγουλον), cf. Zon. XV 2. 2 (his original name is given as Gregorios, doubtless a mistake from his father's name τινα Γρηγόριον ... μετονομάσας τὸν ἄνδρα Τιβέριον). He was executed together with his strategos (unnamed, but see Georgios 4): Theoph. AM 6210, Zon. XV 2. 6-7.
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