Baianos 4 | Prosopography of the Byzantine Empire |
| Sex | M |
| Floruit | M/L VIII |
| Dates | 767 (taq) / 772 (ob.) |
| PmbZ No. | 732 |
| Ethnicity | Bulgar |
| Locations | Bulgaria; Bulgaria (officeplace); Bulgaria (residence) |
| 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) |
Baianos 4 was a leading Bulgar, brother of Toktos 1; Baianos 4 and his brother Toktos 1 both perished in a defeat by the emperor Constantine V (Konstantinos 7): Nic. Brev. de Boor 70-71, Mango 79. For the date, 772, see Grumel, Chronologie, p. 388.
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