According to accounts by his descendants and biographers, Fernando de Alva Cortés Ixtlilxóchitl and Juan Bautista Pomar, he had an experience of an "Unknown, Unknowable Lord of All" (which aligns, intriguingly, with "I Am Who I Am," whom Moses had encountered in the Eastern Hemisphere).

As the tlatoani Itzcoatl of Tenochtitlan requested help from the Huexotzincans against the Tepanecs, Nezahualcoyotl envisioned a single military force in order to fight the mighty kingdom of Azcapotzalco.

The war was declared a shared and single effort, and the coalition army of more than 100,000 men under the command of Nezahualcoyotl and other important tlatoque headed towards Azcapotzalco from the city of Calpulalpan.

At the time the armies met again, Nezahualcoyotl reclaimed Texcoco and decided to conquer Acolhuacan, entering from the north while the Tenochca and Tlacopan allies coming from Azcapotzalco attacked from the south.

The defeat of the Tepanecs and the total destruction of the kingdom of Azcapotzalco gave rise to the Aztec Triple Alliance between Texcoco, Tenochtitlan, and Tlacopan.

A decade later, eager to produce a noble heir, Nezahualcoyotl married Azcalxochitzin after the death of her first husband, King Cuahcuauhtzin of Tepechpan.

Fourteen cities in the region of Acolhuacan were under Nezahualcoyotl, including Otompan, Huexotla, Coatlichan, Chimalhuacan, Tepetlaoztoc, Chiauhtla, Tezoyucan, Teotihuacan, Acolman, Tepechpan, Chiconauhtlan, Xicotepec, Cuauhchinanco, and Tulantzino.

Motolinia claims he enacted some eighty laws addressing issues such as treason, robbery, adultery, homicide, alcohol abuse, misuse of inheritances, and military misconduct.

[7] Revered as a sage and poet-king, Nezahualcoyotl gathered a group of followers called the tlamatini, generally translated as "wise men."

Nezahualcoyotl is credited with cultivating what came to be known as Texcoco's Golden Age, which brought the rule of law, scholarship and artistry to the city and set high standards that influenced surrounding cultures.

Under his rule, Texcoco flourished as the intellectual center of the Triple Alliance and was home to an extensive library that, tragically, did not survive the Spanish conquest.

Indeed, the remains of hilltop gardens, sculptures and a massive aqueduct system show the impressive engineering skills and aesthetic appreciation of his reign.