Batbayan
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Batbayan ruled the Khazarian Bulgars from 667 to 690 CE. Theophanes and Nicephorus record his rule after the Khazars defeated the Bulgars and Old Great Bulgaria disintegrated in 668 CE. Wikipedia
Died: 690 AD, Old Great Bulgaria
Parents: Kubrat
Nephews: Tervel of Bulgaria and Ajjar of Bulgaria
Siblings: Asparuh of Bulgaria