The Septs of Yucatan
The priest-kings of Mayapan, who claimed descent from Kukulcan or Quetzalcoatl, soon raised their state into a position of prominence among the surrounding cities. Those who had founded Chichen-Itza, and who were known as Itzaes, were, on the other hand, a caste of warriors who do not appear to have cherished the priestly function with such assiduity. The rulers of the Itzaes, who were known as the Tutul Xius, seem to have come, according to their traditions, from the western Maya states, perhaps from Nonohualco in Tabasco. Arriving from thence at the southern extremity of Yucatan, they founded the city of Ziyan Caan, on Lake Bacalar, which had a period of prosperity for at least a couple of generations. At the expiry of that period for some unaccountable reason they migrated northward, perhaps because at that particular time the incidence of power was shifting toward Northern Yucatan, and took up their abode in Chichen-Itza, eventually the sacred city of the Maya, which they founded.