Persephone is the daughter of Zeus ( presumably ) and Demeter. She is queen of the Underworld, spending six months of every year with her lover, Hades, and the other six with her mother, Demeter. This arrangement was devised by Hercules as a compromise to make all three Olympians happy. Persephone herself wanted to be with Hades, but realized that she would miss her mother if she stayed in the underworld full-time. (HTLJ "The Other Side")
When Iolaus was killed by the Enforcer II, Persephone encouraged Hades to grant Hercules's request that Iolaus be allowed to live. Whilst Iolaus was in the Underworld, Persephone re-introduced him to his father, Skouros, and gave them a chance to finally work out their differences. As a result of her meddling, Hades allowed Skouros into the Elysian Fields to live with the original Enforcer. (HTLJ "Not Fade Away")
Its unknown what became of Persephone when Hades was killed by Xena in Motherhood. She may have either had to carry on going back and forth to the underworld and her mother, due to the rule of eating food from the Underworld, she may have returned to the surface full-time, or she may have taken over from Hades full-time.
Persephone proves to be kind, calm, respectful and considerate.
Powers and Abilities
As an Olympian goddess, she has the basic Powers and Abilities of every Olympian, she is a goddess related to nature, but in myth she is not as powerful as her mother Demeter.