Sanchez.

(a loanword from Spanish)

Headword: 
Sanchez.
Principal English Translation: 

a Spanish surname

Attestations from sources in Spanish: 

ytoca Matiax Xanchex = se llama Mathías Sanches (Zempoala, "1610", but probably Techialoyan -related)
Vidas y bienes olvidados: Testamentos en náhuatl y castellano del siglo XVII, vol. 3, Teresa Rojas Rabiela, et al, eds. (México: CIESAS, 2002), 82–83.