Gaona.

a European name; e.g. fray Juan de Gaona was a Franciscan nahuatlato of the sixteenth century who worked with Hernando de Ribas

See Sell's comments in Bartolomé de Alva, A Guide to Confession Large and Small in the Mexican Language, 1634, eds. Barry D. Sell and John Frederick Schwaller, with Lu Ann Homza (Norman: University of Oklahoma Press, 1999), 28.