John of Gothia
John of Gothia (Greek: ᾿Ιωάννης ἐπίσκοπος τῆς Γοτθίας, Iōánnēs epískopos tēs Gotthiás; died c. 791 AD) was a Crimean Gothic metropolitan bishop of Doros, and rebel leader who overthrew and briefly expelled the Khazars from Gothia in 787.