In
Aztec mythology,
Tlahuizcalpantecuhtli ("lord of the star of the dawn") was the personification of the morning star, which is the planet
Venus as seen in the morning. His brother
Xolotl was the planet
Venus as the evening star. Tlahuizcalpantecuhtli was a manifestation of
Quetzalcoatl.
Alternative: Tlahuizcalpantecutli