Style and culture of the indigenous Mixtec Mesoamerican peoples, who inhabited the La Mixteca region comprising parts of the Mexican states of Oaxaca, Guerrero, and Puebla. Pre-Columbian Mixtec peoples were one of the major civilizations of Mesoamerica, having an ancient capital at Tilantongo.

Source: Art & Architecture Thesaurus

http://vocab.getty.edu/page/aat/300017180