Lasso de la Vega.

this name was carried by the secular cleric, Bachiller Luis Lasso de la Vega, who wrote the first Nahuatl account of the apparition of the Virgin of Guadalupe in 1649

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), 20.