About Mahadevi

In Hinduism, Mahadevi or "Great Goddess" is the goddess or Devi that is the sum of all other devis – an all-encompassing female deity as the consort or complement to an all-encompassing male deity (Deva) or the Ultimate Reality (Brahman) in Shaktism. Mahadevi is the wife of Mahadeva who is Lord Shiva. Since Parvati is the wife of Lord Shiva, Mahadevi is Parvati.