▁prev ail ing ▁preference ▁was ▁for ▁Rain ald i ' s ▁more ▁sta id ▁and ▁conserv ative ▁design . ▁Bor rom ini ' s ▁limited ▁contributions ▁included ▁the ▁st u cco ▁decor ation ▁of ▁the ▁sal one ▁( the ▁main ▁room ) ▁and ▁design ▁of ▁the ▁Gallery , ▁located ▁at ▁first ▁floor ▁level ▁between ▁the ▁rest ▁of ▁the ▁palace ▁and ▁the ▁church ▁of ▁St . ▁Ag n ese ▁next ▁door . ▁The ▁Gallery ▁extends ▁through ▁the ▁width ▁of ▁the ▁block ▁with ▁a ▁large ▁Ser li ana ▁window ▁at ▁either ▁end . ▁ ▁Between ▁ 1 6 5 1 ▁and ▁ 1 6 5 4 , ▁the ▁painter ▁Pietro ▁da ▁Cort ona ▁was ▁commission ed ▁to ▁decor ate ▁the ▁Gallery ▁v ault . ▁His ▁sec ular ▁fres co ▁cycle ▁dep ict s ▁scenes ▁from ▁the ▁life ▁of ▁ ▁A ene as , ▁the ▁legend ary ▁founder ▁of ▁Rome , ▁as ▁rec ount ed ▁by ▁Vir g il . ▁ ▁The ▁Pam ph ili ▁claim ▁to ▁be ▁desc ended ▁from ▁A ene as . ▁Un like ▁the ▁large ▁sp a cious ▁volume ▁of ▁the ▁Pal azzo ▁Bar ber ini ▁in ▁which ▁he ▁had ▁painted ▁his ▁fres co ▁celebr ating ▁the ▁reign ▁of ▁In noc ent ' s ▁prede cess or , ▁Urban ▁VIII ▁Bar ber ini , ▁the ▁Pam ph il j ▁Gallery ▁was ▁long ▁with ▁a ▁low ▁v ault ▁which ▁meant ▁that ▁a ▁single ▁view point ▁to ▁see ▁the ▁fres co es ▁was ▁not ▁possible . ▁So ▁Cort ona ▁de vised ▁a ▁series ▁of