Itzcahuatzin.

Headword: 
Itzcahuatzin.
Principal English Translation: 

a personal name, in the reverential
Gran Diccionario Náhuatl, citing Wimmer 2004; https://gdn.iib.unam.mx/diccionario/itzcahuatzin/51352. With translation here by Stephanie Wood.

Orthographic Variants: 
Itzcahuatl
Attestations from sources in English: 

See an image that represents Itzcahuatzin in the Visual Lexicon of Aztec Hieroglyphs, ed. Stephanie Wood (Eugene, Ore.: Wired Humanities, 2020-present).

There was a place name Itzcahuacan, in Tlalmanalco, Chalco. The ruler was called Itzcahuatzin. He had a daughter named doña Catalina Chimalmantzin, according to Chimalpahin.
Annals of His Time: Don Domingo de San Antón Muñón Chimalpahin Quauhtlehuanitzin, James Lockhart, Susan Schroeder, and Doris Namala, eds. and transl. (Stanford: Stanford University Press, 2006), 4.

Itzcahuatzin died of smallpox in 1520, according to Alva Ixtlilxochitl.
The Native Conquistador, eds. Amber Brian, Bradley Benton, and Pablo García Loaeza, 2015, 11.