Tezozomoc was a son of Itzcoatl

Itzcóatl

Itzcoatl was the fourth emperor of the Aztecs, ruling from 1427 to 1440, the period when the Mexica threw off the domination of the Tepanecs and laid the foundations for the eventual Aztec Empire.- Biography :...

, the fourth Aztec

Aztec

The Aztec people were certain ethnic groups of central Mexico, particularly those groups who spoke the Nahuatl language and who dominated large parts of Mesoamerica in the 14th, 15th and 16th centuries, a period referred to as the late post-classic period in Mesoamerican chronology.Aztec is the...

 ruler (tlatoani

Tlatoani

Tlatoani is the Nahuatl term for the ruler of an altepetl, a pre-Hispanic state. The word literally means "speaker", but may be translated into English as "king". A is a female ruler, or queen regnant....

) of Tenochtitlan. Although he never became ruler himself, he was married to Atotoztli

Atotoztli (daughter of Moctezuma I)

Atotoztli or Huitzilxochtzin was a daughter of the Aztec emperor Moctezuma I and Chichimecacihuatzin, the daughter of Cuauhtototzin, the ruler of Cuauhnahuac....

, daughter of Moctezuma I

Moctezuma I

Moctezuma I , also known as Motecuhzoma Ilhuicamina, Huehuemotecuhzoma or Montezuma I , was the fifth Aztec emperor - king of Tenochtitlan...

 (the fifth ruler), and three of his sons — Axayacatl

Axayacatl

Axayacatl was the sixth Aztec Emperor, a ruler of the Postclassic Mesoamerican Aztec Empire and city of Tenochtitlan, who reigned from 1469 to 1481.He is chiefly remembered for subjugating Tlatelolco, Tenochtitlan's sister city, in 1473....

, Tizoc

Tízoc

Tizocic or Tizocicatzin , usually known in English as Tizoc, was the seventh tlatoani of Tenochtitlan.-Biography:...

, and Ahuitzotl — would become the sixth, seventh and eighth rulers, respectively. Also, his daughter Chalchiuhnenetzin married Moquihuix

Moquihuix

Moquihuix was the fourth tlatoani of Tlatelolco. He died in 1473 in a military conflict with Tenochtitlan....

, lord of Tlatelolco

Tlatelolco (altepetl)

Tlatelolco was a pre-Columbian Nahua altepetl in the Valley of Mexico. Its inhabitants were known as Tlatelolca. The Tlatelolca were a part of the Mexica ethnic group, a Nahuatl speaking people who arrived in what is now central Mexico in the 13th century...

.