lets . ▁When ▁Zu o ▁first ▁arrived ▁in ▁the ▁region , ▁a ▁de cade ▁of ▁constant ▁war fare ▁had ▁virt ually ▁stopped ▁all ▁publishing ▁in ▁the ▁region . ▁Zu o ▁prior it ised ▁re est ab lish ing ▁the ▁printing ▁industry ▁a ▁priority ▁and ▁thousands ▁of ▁copies ▁of ▁the ▁publications ▁he ▁author ised ▁were ▁distributed ▁in ▁N ing x ia , ▁Q ing hai , ▁G ans u , ▁Sh a an xi ▁and ▁X in ji ang . ▁Print ing ▁appears ▁to ▁have ▁stopped ▁when ▁Zu o ▁returned ▁to ▁Be ij ing , ▁but ▁the ▁endeav our ▁is ▁cred ited ▁with ▁insp iring ▁later ▁printing ▁press es . ▁ ▁Family ▁Zu o ' s ▁great - grand par ents ▁were ▁Zu o ▁F eng sh eng ▁() ▁and ▁Mad am ▁Ji ang ▁( ). ▁His ▁grand par ents ▁were ▁Zu o ▁Ren jin ▁() ▁and ▁Mad am ▁Yang ▁( ). ▁His ▁parents ▁were ▁Zu o ▁Gu an lan ▁( ; ▁ 1 7 7 8 – 1 8 3 0 ) ▁and ▁Mad am ▁Yu ▁( ; ▁ 1 7 7 5 – 1 8 2 7 ). ▁ ▁Zu o ▁had ▁two ▁elder ▁brothers : ▁Zu o ▁Z ong y u ▁( ; ▁ 1 7 9 9 – 1 8 2 3 ) ▁and ▁Zu o ▁Z ong z hi ▁( ; ▁ 1 8 0 4 – 1 8 7 2 ). ▁ ▁In ▁ 1 8 3 2 , ▁Zu o ▁married ▁Z hou ▁Y id uan ▁(