Neptune and the Winds, Oil on canvas, Round painted surface, 24 1/2 x 24 1/2 in. (62. 2 x 62. 2 cm), Paintings, Giovanni Battista Tiepolo (Italian, Venice 1696?1770 Madrid), The sketch illustrates a celebrated passage from Virgil's Aeneid describing how Neptune calmed the winds to save Aeneas from shipwreck. Neptune, his arm raised, commands the winds to desist. Jupiter stands in front of the portico of a circular temple