▁This ▁includes ▁the ▁do ings ▁of ▁At re us ▁and ▁Th y est es ▁at ▁Arg os . ▁Be hind ▁the ▁myth ▁of ▁the ▁house ▁of ▁At re us ▁( one ▁of ▁the ▁two ▁principal ▁hero ic ▁dynast ies ▁with ▁the ▁house ▁of ▁Lab d ac us ) ▁lies ▁the ▁problem ▁of ▁the ▁de volution ▁of ▁power ▁and ▁of ▁the ▁mode ▁of ▁acc ession ▁to ▁so vere ig nt y . ▁The ▁tw ins ▁At re us ▁and ▁Th y est es ▁with ▁their ▁descend ants ▁played ▁the ▁leading ▁role ▁in ▁the ▁tra ged y ▁of ▁the ▁de volution ▁of ▁power ▁in ▁My c ena e . ▁ ▁The ▁The ban ▁Cy cle ▁de als ▁with ▁events ▁associated ▁especially ▁with ▁Cad mus , ▁the ▁city ' s ▁founder , ▁and ▁later ▁with ▁the ▁do ings ▁of ▁La ius ▁and ▁O ed ip us ▁at ▁The bes ; ▁a ▁series ▁of ▁stories ▁that ▁lead ▁to ▁the ▁event ual ▁pill age ▁of ▁that ▁city ▁at ▁the ▁hands ▁of ▁the ▁Seven ▁Again st ▁The bes ▁and ▁Ep ig oni . ▁( It ▁is ▁not ▁known ▁whether ▁the ▁Seven ▁Again st ▁The bes ▁figured ▁in ▁early ▁ep ic .) ▁As ▁far ▁as ▁O ed ip us ▁is ▁concerned , ▁early ▁ep ic ▁accounts ▁seem ▁to ▁have ▁him ▁continu ing ▁to ▁rule ▁at ▁The bes ▁after ▁the ▁revel ation ▁that ▁I ok aste ▁was ▁his ▁mother , ▁and ▁subsequently ▁marry ing ▁a ▁second ▁wife ▁who ▁becomes ▁the ▁mother ▁of ▁his ▁children — mark edly ▁different ▁from ▁the ▁tale