B ul gar ▁gra ves ▁exc av ated ▁in ▁Č el are vo , ▁containing ▁sk ull s ▁with ▁Mong ol ian ▁features ▁and ▁J uda ic ▁symbols , ▁to ▁the ▁late ▁ 8 th ▁and ▁ 9 th ▁centuries . ▁Erd ely ▁and ▁Vil k hn ov ich ▁consider ▁the ▁gra ves ▁to ▁belong ▁to ▁the ▁Kab ars ▁who ▁eventually ▁broke ▁t ies ▁with ▁the ▁Kh azar ▁Empire ▁between ▁the ▁ 8 3 0 s ▁and ▁ 8 6 2 . ▁ ▁The ▁Kab ars ▁supposed ly ▁left ▁scattered ▁remains ▁and ▁some ▁cultural ▁and ▁lingu istic ▁im print s , ▁but ▁this ▁is ▁deb atable . ▁ ▁The ▁Mih ai ▁V ite azu ▁ins cription ▁( Al s ó sz ent mi h ály ▁ins cription ), ▁discovered ▁in ▁the ▁ 2 0 th ▁century ▁in ▁present - day ▁Roman ia , ▁is ▁one ▁of ▁few ▁surv iving ▁re lic s ▁of ▁the ▁Kab ars . ▁It ▁was ▁trans cribed ▁by ▁the ▁arch ae ologist - histor ian ▁G á bor ▁V ék ony . ▁According ▁to ▁the ▁trans cription , ▁the ▁meaning ▁of ▁the ▁two - row ▁ins cription ▁is ▁the ▁following : ▁( first ▁row ) ▁" H is ▁m ansion ▁is ▁famous ." ▁and ▁( second ▁row ) ▁" J ü edi ▁K ür ▁K ara ite ." ▁or ▁" J ü edi ▁K ür ▁the ▁K ara ite ." '' ▁See ▁more ▁details : ▁Ins cription ▁in ▁Kh az arian ▁R ov as ▁script ▁and ▁ ▁R ov