DATTĀTREYA Atri

Dattatreya (Sanskrit: दत्तात्रेय, Dattātreya) or Datta is considered by Hindus to be god who is an incarnation of the Divine Trinity Brahma, Vishnu and Shiva. The word Datta means "Given", Datta is called so because the divine trinity have "given" themselves in the form of a son to the sage couple Atri and Anasuya. He is the son of Atri, hence the name "Atreya."

http://en.wikipedia.org/wiki/Dattatreya