Ocotelolco
Ocotelolco was one of the four principal altepetl of Tlaxcallan, alongside Tepeticpac, Tizatlan and Quiahuiztlan. Its large market made it a leading commercial and administrative centre of the confederation. When the Spaniards arrived in 1519, its lord Maxixcatzin took part in the decision to ally with them against the Mexica. Under colonial rule the rulers of the four lordships continued to hold a place in the Indigenous council of Tlaxcala.