Aztec Conquest of Coixtlahuaca

Timeline

1. 1428Tenochtitlan · Valley of MexicoItzcoatl allied with Nezahualcoyotl of Texcoco and Tlacopan, defeated the Tepanecs of Azcapotzalco, and established the Triple Alliance. Moctezuma I and young nobles such as Tlacaelel rose to prominence in the army, laying the political and military foundations for later expansion south of the valley and toward Oaxaca.
2. c. 1458Coixtlahuaca · Mixtec HighlandsAfter acceding to the throne, Moctezuma I led the largest allied army yet into the Mixtec stronghold of Coixtlahuaca. The Mixtec ruler Atonal, though reinforced by Tlaxcala and Huejotzingo, was defeated; Atonal was killed during the siege and his family reduced to slavery.
3. c. 1458–1460Coixtlahuaca · OaxacaCoixtlahuaca was incorporated into the tribute system; the Codex Mendoza records that it owed blankets, feather ornaments, cochineal dye, and gold dust. Many Mixtec artisans were relocated to Tenochtitlan, and southern wealth in gold, cacao, and rubber flowed systematically into the Mexica court for the first time, paving the way for subsequent conquests of Cotaxtla, the Veracruz coast, and other regions.