Identified with Roman Proserpina

• (Greek mythology) daughter of Zeus and Demeter
• Made queen of the underworld by Pluto in ancient mythology

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Despoina \Despoina\ prop. n. (Classical Mythology) the daughter of Zeus and Demeter; made queen of the underworld by Pluto in ancient mythology; identified with Roman Proserpina . Syn: Persephone, Kore, Cora.

Wikipedia Word definitions in Wikipedia
In Greek mythology , Despoina , Despoena or Despoine , was the daughter of Demeter and Poseidon and sister of Arion . She was the goddess of mysteries of Arcadian cults worshipped under the title Despoina , "the mistress" alongside her mother Demeter, one ...