its ▁after ▁the ▁death ▁of ▁the ▁father . ▁If ▁the ▁oldest ▁son ▁is ▁also ▁dead , ▁the ▁oldest ▁surv iving ▁grand son ▁inher its ; ▁if ▁the ▁el dest ▁son ▁has ▁no ▁sons , ▁the ▁inheritance ▁is ▁passed ▁to ▁the ▁father ' s ▁second ▁son ▁or ▁his ▁sons , ▁and ▁so ▁on ▁through ▁all ▁the ▁sons ▁and ▁their ▁male ▁children ▁if ▁necessary . ▁In ▁pol yg yn ous ▁families ▁which ▁were ▁formed ▁of ▁multiple ▁units , ▁the ▁inheritance ▁rules ▁were ▁changed ▁slightly . ▁Each ▁marriage ▁formed ▁a ▁new ▁unit , ▁independent ▁from ▁the ▁others , ▁with ▁separate ▁property ▁which ▁was ▁inherited ▁by ▁the ▁he ir ▁of ▁each ▁unit . ▁Pol yg yn ous ▁families ▁pract ised ▁either ▁simple ▁or ▁complex ▁inheritance . ▁In ▁the ▁simple ▁system ▁the ▁he ir ▁is ▁the ▁el dest ▁son ▁of ▁the ▁first ▁wife , ▁of ▁if ▁he ▁is ▁dead , ▁the ▁el dest ▁grand son . ▁If ▁the ▁first ▁wife ▁had ▁no ▁sons , ▁the ▁inheritance ▁went ▁to ▁the ▁oldest ▁surv iving ▁male ▁desc endant ▁of ▁the ▁second ▁wife , ▁and ▁so ▁on ▁through ▁all ▁the ▁w ives ▁if ▁necessary . ▁Complex ▁inheritance ▁happened ▁when ▁the ▁hom est ead ▁was ▁separated ▁into ▁two ▁or ▁three ▁units , ▁depending ▁on ▁the ▁number ▁of ▁w ives , ▁and ▁the ▁el dest ▁son ▁of ▁each ▁wife ▁became ▁he ir ▁of ▁their ▁unit . ▁If ▁there ▁was ▁no ▁he ir ▁in ▁one ▁of ▁the ▁units , ▁the ▁he ir ▁of ▁the ▁other ▁inherited ▁both . ▁This ▁form ▁of ▁inheritance ▁was ▁seen ▁among