The memory of Saint George the Confessor is recorded in Lavreotic Codex E 152 pp. 367a. He is remembered as a Bishop of Develtos in Thrace in the period of the heretical Monotheletes in the seventh century, and he endured many trials by the Scythians for his commitment to the Orthodox faith and piety.
He may be confused with another Saint George who was Bishop of Develtos, who was amongst those deported after the city's surrender to Krum in 812 and was tortured to death by Khan Omurtag in 815 with roughly 380 other martyrs who refused to renounce their faith. This Saint George was clubbed to death and is commemorated on January 22nd.