▁ ▁After ▁Nap les , ▁Gi otto ▁stayed ▁for ▁a ▁while ▁in ▁Bolog na , ▁where ▁he ▁painted ▁a ▁Poly pty ch ▁for ▁the ▁church ▁of ▁Santa ▁Maria ▁degli ▁Ang eli ▁and , ▁according ▁to ▁some ▁sources , ▁a ▁lost ▁decor ation ▁for ▁the ▁Chap el ▁in ▁the ▁Card inal ▁Leg ate ' s ▁Castle . ▁In ▁ 1 3 3 4 , ▁Gi otto ▁was ▁appointed ▁chief ▁architect ▁to ▁Florence ▁C athedral . ▁He ▁designed ▁the ▁bell ▁tower , ▁known ▁as ▁Gi otto ' s ▁Camp an ile , ▁begun ▁on ▁July ▁ 1 8 , ▁ 1 3 3 4 . ▁ ▁It ▁was ▁not ▁completed ▁entirely ▁to ▁his ▁design . ▁Before ▁ 1 3 3 7 , ▁he ▁was ▁in ▁Milan ▁with ▁Az zone ▁Vis cont i , ▁but ▁no ▁trace ▁of ▁works ▁by ▁him ▁remain ▁in ▁the ▁city . ▁His ▁last ▁known ▁work ▁was ▁with ▁assist ants ' ▁help : ▁the ▁decor ation ▁of ▁Pod est à ▁Chap el ▁in ▁the ▁B arg ello , ▁Florence . ▁ ▁In ▁his ▁final ▁years , ▁Gi otto ▁had ▁become ▁friends ▁with ▁B occ ac cio ▁and ▁Sac ch etti , ▁who ▁featured ▁him ▁in ▁their ▁stories . ▁Sac ch etti ▁rec ount ed ▁an ▁incident ▁in ▁which ▁a ▁civil ian ▁commission ed ▁Gi otto ▁to ▁paint ▁a ▁shield ▁with ▁his ▁coat ▁of ▁arms ; ▁Gi otto ▁instead ▁painted ▁the ▁shield ▁" ar med ▁to ▁the ▁teeth ", ▁complete ▁with ▁a ▁sword , ▁lance , ▁d agger , ▁and ▁suit ▁of ▁arm