Illapa
Illapa was also the Inca god of lightning and war, ranked among the highest gods of the Andean pantheon. His worship reached across the Andes under local names: Liviac among the Yaros, Pariacaca among the Yauyos, Apocatequil around Cajamarca. When the Inca state expanded, these gods became regional forms of Illapa.
The ruler Pachacuti made him his divine brother, and according to Pedro Sarmiento de Gamboa the god gave him a protective idol shaped like a two-headed serpent, possibly an image of the rainbow.