Eurydice

Jean Raoux, Orpheus and Eurydice, c. 1709, oil on canvas, 205.7 x 203.2 cm, J. Paul Getty Museum, Los Angeles

Eurydice was a nymph and the wife of the musician Orpheus.  She was bitten by a snake and died, and Orpheus journeyed to the Underworld to plead for her release with music.  He was successful, but despite being cautioned to not turn back on the way out, he turned to look at his wife and she was pulled back into the Underworld.

She is typically depicted either with Orpheus, dying of the snakebite, or in the Underworld.