Demeter, Persephone and Hades - Eleusinian Mysteries 

Demeter (Roman Ceres), giver of grain, goddess of harvest and fertility. Mother of Persephone by Zeus.

When Hades abducted Persephone, Demeter grieved till the earth became barren through her neglect. Searching for her daughter, she wandered to Eleusis, where the mysteries were started in her honor.

Persephone, Queen of the Underworld. She is also known as Proserpine (Roman), and Kore, the Maid or the Maiden. 

Hades, god of the underworld, is also known as Pluto, Plouton, Dis (Roman), and Aidoneus. His icons are the cornucopia and the scepter.

Bernini, Gian Lorenzo, 1621-1622

 

Demeter revealed to Triptolemus, an Eleusinian, the art of growing. The Thesmophoria festival is held in her honor at Athens, attended only by women.