The altepetl (city-states) that made up the Triple-Alliance, nowadays most commonly known as the "Aztecs" though this label is of relatively recent origin and was never in use during their time.
From front to back: Texcoco, Tlacopan, and Tenochtitlan. Their human names are Noxochicoztli, Teoxihuitl, and Matlalihuitl respectively if anyone's curious ;v;
It's important to remember while all three spoke Nahuatl as their main language and shared the same religion, they didn't consider themselves as belonging to the same people. Texcoco was mainly inhabited by the Acolhua, and Tlacopan by the Tepaneca which while sister groups to the Mexica (who mainly inhabited Tenochtitlan and Tlatelolco) they had a distinct history and identity which is beyond the scope of this post but I hope to go over in detail someday. I find a bit of a shame that both Texcoco and Tlacopan tend to be downplayed or ignored in favor of the Mexica when they also contributed a lot to the alliance.
Fun facts(?: the prestige dialect of Nahuatl that was spoken throughout the valley of Mexico at the time is based on the Texcocan dialect. Thought by both native and non-natives alike to the most refined and elegant manner of Nahuatl speech.
In the tributary system both Tenochtitlan and Texcoco would each receive 2/5 of tribute collected, while Tlacopan would receive the remaining 1/5.










