Baktangios was closely associated with Artabasdos, a commander of Armenian origin, who seized Constantinople from Constantine V in 741. After Constantine made a comeback in November 743, Baktangios accompanied Artabasdos in his flight to the castle of Pouzanes in Opsikion (northwestern Asia Minor). They were both captured by Constantine's agents and brought to Constantinople, where Artabasdos was blinded and Baktangios was beheaded in the Kynegion, his head exposed on the Milion for three days. He was buried in the monastery of the Chora. Thirty years later, according to the chronicle of Theophanes, Constantine forced Baktangios's widow to unearth his remains, carry them away in her own cloak and deposit them in the cemetery of Pelagios, where suicides were buried.
- "Baktangios 1". Prosopography of the Byzantine Empire. Retrieved 10 February 2019.
- Settipani, Christian (2006). Continuité des élites à Byzance durant les siècles obscurs: les princes caucasiens et l'empire du VIe au IXe siècle. De Boccard. pp. 419–420. ISBN 9782701802268.
- Turtledove, Harry (1982). The Chronicle of Theophanes: an English translation of anni mundi 6095-6305 (A.D. 602-813). University of Pennsylvania Press. p. 110. ISBN 9780812211283.