The frescoes decorating the open arcade known as the Gallery of Hercules were altered by Rainier III, who imported works by Pier Francesco Mazzucchelli depicting mythological and legendary heroes.
Frescele ce decoreaza arcada deschisa cunoscuta ca si Galeria lui Hercules au fost modificate de Rainier al III-lea, care a importat lucrari facute de Pier Francesco Mazzucchelli, ilustrand eroi mitologici si legendari.