Giovanni di Paolo (1403?-1482?), one of the most important painters of the 15th-century Sienese school. His early works show the influence of previous Sienese masters, but his later style grew steadily more individualized, characterized by vigorous, harsh colors and elongated forms. Many of his works have an unusual dreamlike atmosphere, such as the surrealistic Saint Nicholas of Tolentino Saving a Ship (1455?, Philadelphia Museum of Art), while his last works—particularly Last Judgment, Heaven, and Hell (1465?) and Assumption of the Virgin (1475), both at Pinacoteca, Siena—are grotesque treatments of their lofty subjects. Giovanni's reputation declined after his death but was revived in the 20th century.