Santa Maria in Vallicella
He illustrated books, which was published in 1622 as "Palazzi di Genova". From 1606 to 1608, he was mostly in Rome when he received, with the assistance of Cardinal Jacopo Serra (the brother of Maria Pallavicini), his most important commission to date for the High Altar of the city's most fashionable new church, Santa Maria in Vallicella also known as the Chiesa Nuova.