Víctor M. Castillo F., "Relación Tepepulca de los señores de México Tenochtitlan y de Acolhuacan," Estudios de Cultura Náhuatl 11 (1974), 183–225, and see pp. 220–221.
a personal name, a ruler of Tetzcoco who was in power for seventy years, according to the Florentine Codex (Book 8, Folio 7r). In that source, his name is followed by the ethnic designation "Chichimeca."