 The Matlatzinca language is part of the Oto-Pamean subgroup of the Oto-Manguean language family, which also includes Otomi, Mazahua, Pame and Chichimeca Jonaz.Linguistically the term “Matlatzinca” refers to speakers of the Matlatzinca language.In ancient, historical and modern times, the Matlatzinca language was spoken in the Toluca Valley of central Mexico, west of the Valley of Mexico.