1) One-act opera 
Guatimotzin is an opera in one act and nine scenes composed by Aniceto Ortega del Villar to a libretto in Spanish by José Tomás de Cuéllar. It premiered on 13 September 1871 at the Gran Teatro Nacional in Mexico City. Described as an episodio musical (musical episode), its plot is based on the defense of Mexico by its last Aztec emperor, Cuauht...