The Tlahuica, a Nahua ethnic group, arrived in what is now western Morelos and conquered several preexisting towns circa a.d. 1100. Members of Tlahuica elite lineages took control of irrigable land and founded altepeme (small city-states). As population increased, segmentation occurred until there were 32 altepeme. The elite's control of the irrigable land was the basis for collecting tribute consisting of cotton cloth. The 32 altepeme in western Morelos became part of three señoríos (regional centers) comprised of multiple altepeme by a.d. 1400: Cuauhnahuac, Tlaquiltenango, and Xiutepec. Coatlan, located in the southwestern part of western Morelos, remained an independent polity separate from the three señoríos. The 32 altepeme were conquered by the Triple Alliance in the 1430s and 1450s, putting a halt to further conquests by these señoríos and leaving Coatlan as an independent buffer state between the Tlahuica señoríos and Chontal polities to the southwest. The Triple Alliance did not displace the local population in western Morelos or send colonists from the Basin of Mexico, as they did in non-Nahua provinces of the empire.

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墨西哥西部莫雷洛斯阿兹特克时期政治和经济组织

Tlahuica 是纳瓦族的一个族群，他们到达现在的莫雷洛斯西部，并征服了大约几个已存在的城镇广告1100. Tlahuica精英血统的成员控制了可灌溉的土地并建立了替代品（小城邦）。随着人口的增加，分割发生，直到有 32替代品. 精英对水田的控制是收集由棉布组成的贡品的基础。32替代品在莫雷洛斯西部成为三个的一部分老人家（区域中心）由多个替代品经过广告1400：Cuauhnahuac、Tlaquiltenango 和 Xiutepec。位于莫雷洛斯西部西南部的科特兰仍然是一个独立的政体，独立于三个老人家. 32替代品在 1430 年代和 1450 年代被三国同盟征服，阻止了这些人的进一步征服老人家并将 Coatlan 作为 Tlahuica 之间的独立缓冲状态老人家和西南部的Chontal 政体。三联同盟并没有像在帝国的非纳瓦省那样取代莫雷洛斯西部的当地居民或从墨西哥盆地派遣殖民者。