Tezozomoc (Classical Nahuatl: Tezozomoc [tesoˈsomok]) was a son of Itzcoatl, the fourth Aztec ruler (tlatoani) of Tenochtitlan. Although he never became ruler himself, he was married to Atotoztli, daughter of Moctezuma I (the fifth ruler), and three of his sons — Axayacatl, Tizoc, and Ahuitzotl — would become the sixth, seventh and eighth rulers, respectively. Also, his daughter Chalchiuhnenetzin married Moquihuix, lord of Tlatelolco.