a lordly title; also a name of one of the rulers of Tlatelolco; also attested as a male name in Morelos and in Mexico City, probably among other places
huitznahuatl teuctli = a lordly title (central Mexico, late sixteenth century)
Sarah Cline, "The Testaments of Culhuacan," in James Lockhart, Lisa Sousa, and Stephanie Wood, eds., Sources and Methods for the Study of Postconquest Mesoamerican Ethnohistory, (e-book) (Eugene, OR: Wired Humanities Project, e-book, 2007, updated in 2010.
We see a person named Huitznahuatl in the tribute census of what is now the state of Morelos. This is not the ruler of Tlatelolco, of course, but someone with a similar name: y tequitqui ytoca viznavatl = The tribute payer is named Huitznahuatl. (Cuernavaca region, ca. 1540s)