9 8 , ▁he ▁appointed ▁Bo z org me hr ▁as ▁his ▁minister ▁( w uz urg ▁fram ad ā r ). ▁During ▁his ▁ten ure , ▁Bo z org me hr ▁persu aded ▁K av ad ▁to ▁stop ▁tax ation ▁on ▁f ruits ▁and ▁gra in ▁from ▁the ▁pe asant ry . ▁An ▁early ▁reference ▁to ▁Bo z org me hr ▁is ▁found ▁in ▁the ▁A yd ā g ā r ▁ ī ▁W uz urg mi hr , ▁in ▁which ▁he ▁is ▁called ▁an ▁arg bed — a ▁high - ran king ▁title ▁in ▁the ▁S as an ian ▁and ▁Par th ian ▁periods . ▁Among ▁other ▁sources , ▁later ▁mention ▁of ▁him ▁is ▁made ▁in ▁the ▁Shah name h ▁and ▁in ▁al - Th a ' al ib i ’ s ▁Gh ur ar ▁and ▁al - M as udi ’ s ▁Mur ū j ▁al - D h ah ab . ▁During ▁the ▁reign ▁of ▁K av ad ▁I ' s ▁son ▁and ▁successor , ▁Kh os row ▁I ▁( ), ▁Bo z org me hr ▁continued ▁his ▁ten ure ▁as ▁minister ▁of ▁the ▁sh ah . ▁He ▁further ▁rose ▁to ▁prom in ence ▁after ▁being ▁appointed ▁as ▁military ▁commander ▁( sp ah bed ) ▁of ▁the ▁k ust ▁( front ier ▁region ) ▁of ▁K hor as an ▁( K h war as an ) ▁by ▁Kh os row ▁I , ▁who ▁reported ly ▁reg rett ed ▁K av ad ▁I ' s ▁approach ▁to ▁the ▁family .