Duran states that the Chalcans had sent presents with offers of alliance before the Spaniards crossed the mountain border. Hist. Ind., MS., ii. 491. But this is doubtful. Ixtlilxochitl assumes that they appealed first to his namesake, as their suzerain, and he advised submission to Cortés. Mizquic and Cuitlahuac appear to have joined in the submission.

Bernal Diaz writes that two archers fell and seven of the foe. Owing to this incident Sandoval left orders that no reënforcements from Villa Rica should advance beyond Tlascala till further orders. Hist. Verdad., 122. Prescott wrongly assumes that this attack occurred on the march to Chalco.

Ixtlilxochitl, Hist. Chich. 314. On another page, 307, he names Omacatzin and four other caciques, and Chimalpain, several others, Hist. Conq., 36-7; but they appear nearly all to be sub-caciques. Brasseur de Bourbourg calls the first lord Itzcahuatzin.