Mictlantecuhtli in Aztec mythology, was a god of the dead and the king of Mictlan, the lowest and northernmost section of the underworld. He was one of the principal gods of the Aztecs and was the most prominent of several gods and goddesses of death and the underworld. The worship of Mictlantecuhtli sometimes involved ritual cannibalism, with human flesh being consumed in and around the temple.
Mictlantecuhtli was 6 foot tall, and was depicted as a blood-spattered skeleton or a person wearing a toothy skull. Although his head was typically a skull, his eye sockets did contain eyeballs. His headdress was shown decorated with owl feathers and paper banners, and he wore a necklace of human eyeballs, while his earspools were made from human bones.
His wife was Mictecacihuatl, and together they were said to dwell in a windowless house in Mictlan. Mictlantecuhtli was associated with spiders, owls, bats, the eleventh hour, and the northern compass direction, known as Mictlampa, the region of death. He was one of only a few deities held to govern over all three types of souls identified by the Aztecs, who distinguished between the souls of people who died normal deaths (of old age, disease, etc.), heroic deaths (e.g. in battle, sacrifice or during childbirth), or non-heroic deaths.
According to Aztec legend, the twin gods Quetzalcoatl and Xolotl were sent by the other gods to steal the bones of the previous generation of gods from Mictlantecuhtli. The god of the underworld sought to block Quetzalcoatl's escape with the bones and, although he failed, he forced Quetzalcoatl to drop the bones, which were scattered and broken by the fall. The shattered bones were collected by Quetzalcoatl and carried back to the land of the living, where the gods transformed them into the various races of mortals.