GIA4756494 The Gods of Olympus and on the left Thetis, Achilles\'s mother, stands on his knees against Zeus (Jupiter) to beg him to help his son against Agamemnon and to support the Trojans. L\'Iliad, Chant I, Engraving from the end of the 18th century. by Unknown artist, (18th century); Private Collection; (add.info.: The Gods of Olympus and on the left Thetis, Achilles\'s mother, stands on his knees against Zeus (Jupiter) to beg him to help his son against Agamemnon and to support the Trojans. L\'Iliad, Chant I, Engraving from the end of the 18th century.); by Giancarlo Costa; out of copyright.