Tlaloc, He Who Makes Things Sprout. Tlaloc is the god of rain, lightning and thunder. He is a fertility god, but also a wrathful deity. He is responsible for both floods and droughts.
Tlaloc is commonly depicted as a goggle-eyed blue being with jaguar fangs. Often he is presented wearing a net of clouds, a crown of heron feather and foam sandals. He carries rattles to make thunder.
Tlaloc was first married to the goddess Xochiquetzal, but then Tezcatlipoca kidnapped her. He later married Chalchihuitlicue. With Chalchihuitlicue he became the father of Tecciztecatl. Tlaloc has an older sister named Huixtocihuatl.
He is the ruler of Tlalocan, the fourth heaven. Tlalocan is the place of eternal spring, a paradise of green plants. Tlalocan is the destination in the afterlife for those who died violently from phenomena associated with water, such as by lightning, drowning and water-borne diseases.
Tlaloc ruled over the third world, 4 Quiahuitl, the world that was destroyed by a fiery deluge.
He is served by various rain spirits called the tlaloque.
In Tenochtitlan, ancient Mexico City, half of the central temple ("Huey Teocalli") was dedicated to Tlaloc. The other half was dedicated to Huitzilopochtli, the god of the Mexica.
Tlaloc is both the protector of the seventh day, Mazatl (deer) and the seventh trecena, 1-Quiahuitl (rain). He is Lord of the Day for days with number 8 ("chicuei" in Nahuatl). Tlaloc is the nineth and last Lord of the Night.