The Tepexic Annals pair this volcano/goddess, Matlalcueye, with the hoary old man volcano, Poyauhtecatl (the Orizaba volcano), much as Iztaccihuatl (female) is paired with Popocatepetl (male).
Gordon Brotherston, et al, Footprints through Time (Bloomington: Indiana University, Lilly Library, 1997), 55.
Matlalcueye = "woman who had blue skirts" (García Garagarza translation, 2023)
Sahagún, Bernardino de, Antonio Valeriano, Alonso Vegerano, Martín Jacobita, Pedro de San Buenaventura, Diego de Grado, Bonifacio Maximiliano, Mateo Severino, et al. Historia general de las cosas de Nueva España (Florentine Codex), Ms. Mediceo Palatino 218–20, Biblioteca Medicea Laurenziana, Florence, MiBACT, 1577. Available at Digital Florentine Codex/Códice Florentino Digital, edited by Kim N. Richter, Alicia Maria Houtrouw, Kevin Terraciano, Jeanette Peterson, Diana Magaloni, and Lisa Sousa, bk. 11, fol. 232v. Los Angeles: Getty Research Institute, 2023. https://florentinecodex.getty.edu/en/book/11/folio/232v . Accessed 25 January 2026.
Matlalquaie [Matlalcueye]: "tlaxcallan in ca, tachcauh, vei, veipol, veitepul, tepeuhtica, toiauhtica, veca tlacçatica, xixipuchtic, xixiqujpiltic, vacaltic, vacaliuhquj." [Tlaxcallan in ca, tachcauh, huei, hueipol, tepeuhtica, toyauhtica, hueca tlaczatica, xixipochtic, xixiquipiltic, huacaltic, huacaliuhqui. (Orthographic update by SW)] = "It is by Tlaxcalla. It is a principal one, large, big, huge. It is radiating, outspread, going far out, rough, uneven, with ravines, with gorges." (Anderson & Dibble translation)
Sahagún, Bernardino de, Antonio Valeriano, Alonso Vegerano, Martín Jacobita, Pedro de San Buenaventura, Diego de Grado, Bonifacio Maximiliano, Mateo Severino, et al. Historia general de las cosas de Nueva España (Florentine Codex), Ms. Mediceo Palatino 218–20, Biblioteca Medicea Laurenziana, Florence, MiBACT, 1577. Available at Digital Florentine Codex/Códice Florentino Digital, edited by Kim N. Richter, Alicia Maria Houtrouw, Kevin Terraciano, Jeanette Peterson, Diana Magaloni, and Lisa Sousa, bk. 11, fol. 232v. Los Angeles: Getty Research Institute, 2023. https://florentinecodex.getty.edu/en/book/11/folio/232v . Accessed 25 January 2026.