Wikipedia
Coxcoxtli
Coxcoxtli was a king of city-state Culhuacán.
He had two children — a son called Huehue Acamapichtli and a daughter Atotoztli I, who married Opochtli Iztahuatzin and bore him Acamapichtli, the first ruler of Tenochtitlan. He was thus an ancestor of Aztec emperors.