There is more than one artist with this name. 1) A trio formed in Florence in the early 70's by keyboardist Vincenzo Coccimiglio along with bass player Agostino "Tino" Nobile, that had previously played in Noi Tre, a legendary band that also included guitarists Franco Falsini of Sensations' Fix and Paolo Tofani that was in Area and later known as Electric Frankenstein.
After trying various drummers, they found a suitable one in Giorgio Sorano and Triade was born. 2) Hip-hop group.

Read more about Triade on Last.fm.