“Coyolxauhqui, plotted with her brothers to kill their mother, Coatlicue (“serpent skirt”) after she was impregnated in a mysterious fashion by a floating balls of feathers. Warned of her plot, Huitzilopochtli came forth from his mother’s womb armed with the xiuhcoatl (“fire serpent”), and he decapitated his sister. Her severed limbs tumbled down the mountain. Then he attacked the 400 Southerners on the mountain top; the few survivors fled to the south.” (source)
