Cymon and Iphigenia. In Greek mythology, Eurydice was an oak nymph or one of the daughters of Apollo.
She was the wife of Orpheus, who tried to bring her back from the dead with his enchanting music. Eurydice was the wife of Orpheus, who loved her dearly; on their wedding day, he played joyful songs as his bride danced through the meadow.
One day, Aristaeus saw and pursued Eurydice, who stepped on a viper, was bitten, and died instantly. Distraught, Orpheus played and sang so mournfully that all the nymphs and deities wept and told him to travel to the Underworld to retrieve her, which he gladly did.
After his music softened the hearts of Hades and Persephone, his singing so sweet that even the Erinyes wept, he was allowed to take her back to the world of the living. In another version, Orpheus played his lyre to put Cerberus, the guardian of Hades, to sleep, after which Eurydice was allowed to return with Orpheus to the world of the living.
Either way, the condition was attached that he must walk in front of her and not look back until both had reached the upper world. Soon he began to doubt that she was there, and that Hades had deceived him. Just as he reached the portals of Hades and daylight, he turned around to gaze on her face, and because Eurydice had not yet crossed the threshold, she vanished back into the Underworld. When Orpheus later was killed by the Maenads at the orders of Dionysus,