▁ris en ▁up ▁against ▁the ▁Kh agan . ▁The ▁u pr ising ▁was ▁cr ushed , ▁and ▁some ▁of ▁them ▁were ▁mass ac red , ▁but ▁others ▁escaped ▁and ▁joined ▁the ▁Mag y ars ▁in ▁the ▁Pont ic ▁ste pp es . ▁▁ ▁History ▁ ▁The ▁Kab ars ▁re bel led ▁against ▁the ▁Kh azar ▁Kh agan ate ▁in ▁the ▁early ▁nin th ▁century ; ▁the ▁re bell ion ▁was ▁notable ▁enough ▁to ▁be ▁described ▁in ▁Const antine ▁P orph y ro gen it us ' s ▁work ▁De ▁Administr ando ▁Imper io . ▁Sub sequently ▁the ▁Kab ars ▁were ▁exp elled ▁from ▁Lev edia ▁in ▁the ▁Kh azar ▁Kh agan ate ▁leading ▁the ▁Magyar ▁trib al ▁conf eder acy ▁called ▁H ét - M agyar ▁( mean ing ▁" se ven ▁Hung ari ans ") ▁to ▁Et el kö z ▁while ▁others ▁under ▁Khan - Tu van ▁sought ▁refuge ▁by ▁joining ▁the ▁Rus ' ▁people . ▁One ▁of ▁the ▁names ▁on ▁the ▁K iev ian ▁Let ter ▁is ▁" K i ab ar ", ▁showing ▁that ▁some ▁Kab ars ▁settled ▁in ▁K iev ▁with ▁the ▁Rus ' ▁as ▁well . ▁According ▁to ▁Mag oc si , ▁" A ▁violent ▁civil ▁war ▁took ▁place ▁during ▁the ▁ 8 2 0 s ▁[...] ▁The ▁los ers ▁of ▁the ▁internal ▁political ▁struggle , ▁known ▁as ▁Kab ars , ▁fled ▁north ward ▁to ▁the ▁Var ang ian ▁Rus ' ▁in ▁the ▁upper ▁Vol ga ▁region , ▁near ▁Rost ov , ▁and ▁south ward ▁to ▁the ▁Mag