 The painting to the right of the altar about the "Transit of St Joseph" was painted by Francesco Gessi, while the painting of "Santa Caterina da Bologna" (now lost) was painted by Giovanni Giuseppe dal Sole.The main altarpiece with a "Virgin, Baby Jesus, and Saints John the Evangelist and Petronio" was painted by Domenichino; it is now in the Galleria Nazionale d'Arte Antica in Palazzo Barberini of Rome.The missing altarpieces are replaced by works from unattributed artists.