▁which ▁he ▁was ▁responsible ▁for ; ▁document ary ▁evidence ▁surv ives ▁in ▁Rap ha el ' s ▁hand ▁confirm ing ▁Giul io ▁Rom ano ' s ▁work ▁on ▁this ▁commission . ▁The ▁face ▁has ▁indeed ▁been ▁alter ed ; ▁otherwise ▁Vas ari ' s ▁description ▁might ▁also ▁apply ▁to ▁another ▁portrait ▁which ▁has ▁been ▁attributed ▁to ▁Giul io ▁Rom ano ▁and ▁Rap ha el , ▁Isabel la ▁of ▁Arag on ▁as ▁Mon a ▁Lisa , ▁dep ict ing ▁Isabel la ▁of ▁Arag on , ▁Duch ess ▁of ▁Milan , ▁also ▁known ▁as ▁Isabel la ▁of ▁Nap les . ▁ ▁Op in ions ▁have ▁varied ▁as ▁to ▁who ▁executed ▁the ▁cart oon ▁for ▁the ▁Port rait ▁of ▁Do ña ▁Isabel ▁de ▁Re ques ens , ▁which ▁was ▁likely ▁re used ▁for ▁that ▁of ▁Isabel la ▁of ▁Arag on ; ▁L uit p old ▁D uss ler ▁considered ▁the ▁painting ▁entirely ▁Giul io ▁Rom ano ' s ▁work . ▁However , ▁both ▁port ra its ▁are ▁now ▁generally ▁thought ▁to ▁have ▁been ▁executed ▁to ▁Rap ha el ' s ▁design , ▁and ▁the ▁two ▁paint ings ▁have ▁been ▁referred ▁to ▁as ▁Rap ha el ' s ▁G io cond ae ▁for ▁their ▁visual ▁references ▁to ▁Leonard os ▁Mon a ▁Lisa ▁( also ▁known ▁as ▁La ▁G io conda ), ▁which ▁was ▁already ▁in ▁Francis ▁I ' s ▁collection . ▁It ▁is ▁also ▁possible ▁that ▁the ▁portrait ▁of ▁Isabel la ▁of ▁Arag on ▁is ▁a ▁copy ; ▁the ▁gallery ▁that ▁holds ▁it , ▁the ▁D oria