Batbayan

Batbayan
Ruler of Bulgaria
Reign	665–668
Predecessor	Kubrat
Successor	Asparukh
Died	690
House	Dulo
Father	Kubrat

Batbayan (died 690) (also known as Bayan or Boyan, Bezmer or Bezmes, Bazmei + an) was the eldest son of Khagan Kubrat. After Kubrat, Batbayan ruled from Poltava the Old Great Bulgaria, the lands north of the Black and Azov Sea.

Balkor
Khazars over Volga Bulgaria
Emnetzur

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Wikipedia