▁are ▁very ▁Gi otto - like ▁in ▁composition , ▁but ▁have ▁some ▁of ▁the ▁S ien a ▁decor ative ▁br ill iance ▁of ▁color . ▁ ▁In ▁ 1 3 9 1 - 1 3 9 2 ▁Sp in ello ▁was ▁painting ▁six ▁fres co es , ▁which ▁still ▁remain ▁on ▁the ▁south ▁wall ▁of ▁the ▁P isan ▁Cam po ▁Santo , ▁representing ▁m ira cles ▁of ▁St . ▁Pot it us ▁and ▁St . ▁E ph es us . ▁For ▁these ▁he ▁received ▁ 2 7 0 ▁gold ▁flor ins . ▁Among ▁his ▁later ▁works ▁the ▁chief ▁are ▁the ▁very ▁fine ▁series ▁of ▁fres co es ▁painted ▁in ▁ 1 4 0 7 - 1 4 0 8 ▁on ▁the ▁walls ▁and ▁v ault ▁of ▁a ▁chap el ▁in ▁the ▁municipal ▁buildings ▁of ▁S ien a ; ▁these ▁also ▁have ▁suffered ▁much ▁from ▁rep ain ting , ▁but ▁still ▁are ▁the ▁fin est ▁of ▁Sp in ello ' s ▁existing ▁fres co es . ▁F res co es ▁in ▁S ala ▁di ▁Bal ia ▁of ▁the ▁Pal azzo ▁Pub blic o ▁ ▁represent ▁the ▁war ▁of ▁Frederick ▁Bar bar ossa ▁against ▁the ▁Pope ▁Alexander ▁III . ▁Sp in ello ▁died ▁in ▁Are z zo ▁about ▁ 1 4 1 0 . ▁ ▁Work ▁Sp in ello ' s ▁fres co es ▁are ▁all ▁strong ▁and ▁highly ▁decor ative ▁works , ▁drawn ▁with ▁much ▁spirit , ▁and ▁are ▁very ▁superior ▁in ▁style ▁to ▁his ▁panel ▁pictures , ▁many ▁of ▁which ▁appear ▁to ▁be