▁the ▁ 7 th - century ▁Chinese ▁chron icles . ▁ ▁J ies hes hu ai ▁event ▁ ▁Eastern ▁Turk ic ▁Kh agan ate ▁col lapsed ▁in ▁ 6 3 0 ▁and ▁most ▁of ▁Turk ic ▁trib al ▁leaders ▁accepted ▁the ▁su zer ain ty ▁of ▁Tang ▁China . ▁Tang ▁em peror ▁Ta iz ong ▁tried ▁to ▁sub j ug ate ▁the ▁Turk ic ▁tribes ▁by ▁offering ▁posts ▁to ▁Turk ic ▁princes . ▁J ies hes hu ai ▁of ▁the ▁Ash ina ▁house , ▁was ▁appointed ▁as ▁a ▁general . ▁However , ▁in ▁ 6 3 9 , ▁he ▁st aged ▁a ▁coup ▁to ▁arrest ▁the ▁em peror . ▁He ▁was ▁planning ▁to ▁buy ▁the ▁freedom ▁of ▁Tur ks ▁and ▁to ▁ent hr one ▁Hol oh u , ▁his ▁nep hew ▁as ▁the ▁k h agan ▁of ▁Tur ks . ▁However ▁he ▁couldn ' t ▁succeed ▁and ▁was ▁executed . ▁Although ▁the ▁plot ▁was ▁un success ful , ▁Ta iz ong ▁wor ried ▁about ▁the ▁clos eness ▁of ▁the ▁Turk ic ▁tribes ▁which ▁were ▁settled ▁in ▁the ▁area ▁south ▁of ▁Y ellow ▁River ▁and ▁changed ▁the ▁policy ▁of ▁Turk ic ▁settlement . ▁ ▁K ür ş at ▁in ▁literature ▁In ▁old ▁Turk ic , ▁K ür ▁means ▁" arrow " ▁ ▁or ▁" amb it ious ". ▁ Ş ad ▁' s ons ▁of ▁k han ' ▁was ▁the ▁title ▁of ▁a ▁cl an ▁leader ▁of ▁the ▁royal ▁blood . ▁▁ Ş ads ▁were ▁assist ants ▁of ▁the ▁k h agan ▁( em