John of Gothia was Greek Orthodox Bishop of Gothia and Metropolitan of Doros, a stronghold of the Crimean Goths, in the mid to late 700s CE. In 787 John led a revolt against Khazar domination of Gothia. The Khazar garrison and tudun were expelled from Doros, but returned and retook the city in less than a year. John was imprisoned in Itil for a time before being released. Vasiliev, Aleksandr A. "The Goths in the Crimea". Wikipedia
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