Hecate

Hecate or Hekate is an ancient goddess, sometimes depicted in triple form, variously associated with crossroads, entrance-ways, fire, light, the Moon, magic, witchcraft, knowledge of herbs and poisonous plants, necromancy and sorcery. She has rulership over earth, sea and sky, as well as a more universal role as Saviour (Soteira), Mother of Angels and the Cosmic World Soul.

(Source: Wikipedia)