^Itzcoatl's mother is given as a Tepanec woman from Azcapotzalco; see for example Aguilar-Moreno (2007, p. 39).
^Madrid Codex, VIII, 192v, as quoted in León-Portilla, p. 155. Note that León-Portilla finds Tlacaelel to be the instigator of this burning, despite lack of specific historical evidence.