Parentage:
She's the daughter of Zeus, king of the gods, and Demeter, goddess of agriculture.
Consorts & Children:
She's the wife of Hades, king of the Underworld. One day, while Persephone was picking wildflowers, her uncle Hades abducted her to his domain, where he made her his bride. Her mother, Demeter, then grieved the loss of her daughter by letting living things wither and die, until finally, Zeus demanded Hades release Persephone. However, Persephone had eaten a pomegranate from the Underworld, or half of a pomegranate by some accounts, and therefore, was to spend six months with her mother and the rest of the year with Hades, thus bringing about the seasons.
Sacred Symbols:
Her only attribute is a sheaf of grain.
Persephone Around the World:
Her Roman equivalent is Proserpina.
SOURCES: Greek Mythology.com, Encyclopedia Mythica, & Wikipedia