▁In ▁ 1 5 2 8 ▁V es al ius ▁entered ▁the ▁University ▁of ▁Le u ven ▁( P ed agog ium ▁Cas tr ense ) ▁taking ▁arts , ▁but ▁when ▁his ▁father ▁was ▁appointed ▁as ▁the ▁V alet ▁de ▁Cham bre ▁in ▁ 1 5 3 2 , ▁he ▁decided ▁instead ▁to ▁purs ue ▁a ▁career ▁in ▁the ▁military ▁at ▁the ▁University ▁of ▁Paris , ▁where ▁he ▁re located ▁in ▁ 1 5 3 3 . ▁There ▁he ▁studied ▁the ▁theories ▁of ▁Gal en ▁under ▁the ▁aus p ices ▁of ▁Jacques ▁Dub ois ▁( Jac ob us ▁Syl vi us ) ▁and ▁Jean ▁F ernel . ▁It ▁was ▁during ▁this ▁time ▁that ▁he ▁developed ▁an ▁interest ▁in ▁an atom y , ▁and ▁he ▁was ▁often ▁found ▁exam ining ▁exc av ated ▁b ones ▁in ▁the ▁char nel ▁houses ▁at ▁the ▁C emetery ▁of ▁the ▁In noc ents . ▁ ▁V es al ius ▁was ▁forced ▁to ▁leave ▁Paris ▁in ▁ 1 5 3 6 ▁ow ing ▁to ▁the ▁opening ▁of ▁host ilities ▁between ▁the ▁Holy ▁Roman ▁Empire ▁and ▁France ▁and ▁returned ▁to ▁Le u ven . ▁He ▁completed ▁his ▁studies ▁there ▁under ▁Johann ▁Winter ▁von ▁And ern ach ▁and ▁graduated ▁the ▁following ▁year . ▁His ▁th esis , ▁Par ap hr asis ▁in ▁non um ▁li br um ▁Rh az ae ▁med ici ▁arab is ▁clar iss . ▁ad ▁reg em ▁Al mans orum ▁de ▁affect u um ▁singular um ▁corpor is ▁part ium ▁c uration e , ▁was ▁a ▁comment ary