 With it, soon after his birth, he pierced his sister Coyolxauhqui, destroying her, and also defeated the Centzon Huitznahua.This incident is illustrated on a fragment of broken sculpture excavated from the Great Temple of Tenochtitlan.The fragment was originally a part of a large stone disk that depicted the fallen Coyolxauhqui with the Xiuhcoatl fire serpent penetrating her chest.