▁trust ed . ▁ ▁After ▁the ▁initial ▁d yn astic ▁cha os , ▁a ▁series ▁of ▁longer ▁reign ing , ▁better ▁att ested ▁k ings ▁ruled ▁for ▁about ▁fifty ▁to ▁eight y ▁years . ▁The ▁strong est ▁king ▁of ▁this ▁period , ▁Ne fer h ote p ▁I , ▁ruled ▁for ▁eleven ▁years ▁and ▁maintained ▁effective ▁control ▁of ▁Upper ▁Egypt , ▁N ub ia , ▁and ▁the ▁D elta , ▁with ▁the ▁possible ▁exceptions ▁of ▁X ois ▁and ▁A var is . ▁Ne fer h ote p ▁I ▁was ▁even ▁recognized ▁as ▁the ▁su zer ain ▁of ▁the ▁r uler ▁of ▁By bl os , ▁indicating ▁that ▁the ▁Th ir teenth ▁D ynast y ▁was ▁able ▁to ▁retain ▁much ▁of ▁the ▁power ▁of ▁the ▁Tw elf th ▁D ynast y , ▁at ▁least ▁up ▁to ▁his ▁reign . ▁At ▁some ▁point ▁during ▁the ▁ 1 3 th ▁D ynast y , ▁X ois ▁and ▁A var is ▁began ▁gover ning ▁themselves , ▁the ▁r ul ers ▁of ▁X ois ▁being ▁the ▁Four teenth ▁D ynast y , ▁and ▁the ▁A si atic ▁r ul ers ▁of ▁A var is ▁being ▁the ▁Hy ks os ▁of ▁the ▁Fif teenth ▁D ynast y . ▁According ▁to ▁Man eth o , ▁this ▁latter ▁revol t ▁occurred ▁during ▁the ▁reign ▁of ▁Ne fer h ote p ' s ▁successor , ▁Sob ek h ote p ▁IV , ▁though ▁there ▁is ▁no ▁arch ae ological ▁evidence . ▁Sob ek h ote p ▁IV ▁was ▁succeeded ▁by ▁the ▁short