Early Integration of the Aztec Triple Alliance (1403)

Name: Early Integration of the Aztec Triple Alliance (1403)
Start: 1401
End: 1410

Type Event Region North America Time 1401–1410

In the early 15th century, Tenochtitlan, Texcoco, and Tlacopan gradually strengthened cooperation and military coordination under Tepanec hegemony (A…

Timeline

1401–1403Azcapotzalco · Mexico CityAzcapotzalco, as the core of the Tepanec alliance, imposed tribute and military obligations on city-states such as Tenochtitlan and Texcoco; valley politics were framed by vassal-suzerain relations.
1403–1408Tenochtitlan · Mexico CityRulers of the Mexica (Aztec) and Acolhua (Texcoco) strengthened contacts in jointly responding to Tepanec levies, with shared intelligence and joint military expeditions gradually taking shape.
1408–1410Tlacopan · Mexico CityTlacopan joined the Mexica-Acolhua cooperation circle; the political tradition of the future three-way division of spoils (2:2:1) took shape in this period, prearranging the formal alliance after the overthrow of Azcapotzalco in 1428.

Sources

The Aztecs — Michael E. Smith (2003)
Aztec Triple Alliance https://www.britannica.com/topic/Aztec-Triple-Alliance