". ▁According ▁to ▁the ▁ancient ▁historian ▁Su eton ius , ▁Cal ig ula ▁believed ▁that ▁Min erva ▁would ▁super v ise ▁his ▁daughter ' s ▁growth ▁and ▁education . ▁Su eton ius ▁further ▁claims ▁that ▁"[ Cal ig ula ] ▁considered ▁[ D rus illa ] ▁as ▁his ▁own ▁child ▁for ▁no ▁better ▁reason ▁than ▁her ▁sav age ▁temper , ▁which ▁was ▁such ▁even ▁in ▁her ▁inf ancy , ▁that ▁she ▁would ▁attack ▁with ▁her ▁n ails ▁the ▁face ▁and ▁eyes ▁of ▁the ▁children ▁that ▁play ▁with ▁her ." ▁ ▁Mur der ▁ ▁On ▁ 2 4 ▁January ▁ 4 1 , ▁Julia ▁Dr us illa ▁and ▁her ▁parents ▁were ▁at ▁the ▁imperial ▁palace ▁complex ▁on ▁the ▁Pal at ine ▁Hill ▁in ▁Rome . ▁A ▁consp i racy ▁to ▁assass inate ▁Cal ig ula ▁and ▁replace ▁him ▁with ▁his ▁uncle ▁Claud ius ▁had ▁been ▁in ▁discussion ▁for ▁some ▁time ▁and ▁that ▁day ▁had ▁been ▁decided ▁for ▁the ▁event . ▁While ▁Cal ig ula ▁was ▁address ing ▁an ▁acting ▁tr oupe ▁of ▁young ▁men ▁during ▁a ▁series ▁of ▁games ▁and ▁dram at ics ▁held ▁for ▁the ▁Div ine ▁August us , ▁the ▁Pra et or ian ▁Guard , ▁led ▁by ▁Cass ius ▁Cha erea , ▁storm ed ▁the ▁imperial ▁complex . ▁ ▁The ▁crypt oport icus ▁( under ground ▁cor rid or ) ▁where ▁this ▁event ▁would ▁have ▁taken ▁place ▁was ▁discovered ▁beneath ▁the ▁imperial ▁pal aces ▁on ▁the ▁Pal at ine ▁Hill . ▁By ▁the ▁time ▁Cal ig ula ' s ▁loyal ▁German