ag hi - Si yan ▁was ▁much ▁more ▁willing ▁to ▁assist ▁him . ▁This ▁new ▁al liance ▁was ▁se aled ▁with ▁a ▁marriage ▁between ▁Rad wan ▁and ▁Y ag hi - Si yan ' s ▁daughter . ▁The ▁two ▁were ▁about ▁to ▁attack ▁Sh a izar ▁when ▁they ▁heard ▁of ▁the ▁arrival ▁of ▁the ▁First ▁Cr us ade ; ▁all ▁the ▁various ▁al li ances ▁were ▁dis band ed ▁and ▁everyone ▁returned ▁to ▁their ▁own ▁cities , ▁though ▁if ▁any ▁of ▁the ▁al li ances ▁had ▁remained ▁int act , ▁or ▁they ▁had ▁all ▁worked ▁together , ▁they ▁would ▁likely ▁have ▁been ▁able ▁to ▁prevent ▁the ▁success ▁of ▁the ▁cr us ade . ▁▁ ▁Over ▁the ▁winter ▁of ▁ 1 0 9 7 - 1 0 9 8 , ▁Ant io ch ▁was ▁bes ie ged ▁by ▁the ▁Cr us aders , ▁and ▁Y ag hi - Si yan ▁and ▁his ▁son ▁Sh ams ▁ad - D aw la ▁sought ▁help ▁from ▁Du qa q . ▁On ▁December ▁ 3 0 , ▁ 1 0 9 7 , ▁rein for c ements ▁from ▁Du qa q ▁were ▁defeated ▁by ▁the ▁for aging ▁party ▁of ▁Boh em und ▁of ▁Tar anto , ▁and ▁Du qa q ▁retre ated ▁to ▁H oms . ▁Du qa q ▁later ▁joined ▁Ker b og ha ▁of ▁Mos ul ▁to ▁attack ▁the ▁cr us aders ▁after ▁they ▁had ▁occupied ▁Ant io ch ▁in ▁June ▁ 1 0 9 8 , ▁but ▁during ▁the ▁battle , ▁Du qa q '