Luis Lasso de la Vega

He is known chiefly as the author of the Huei tlamahuiçoltica ("The Great Happening"), an account published in 1649[1] which contains a narrative describing the reported apparition of the Virgin Mary before Saint Juan Diego in 1531, some 117 years earlier.

The account describes the appearance of the apparition now known as Our Lady of Guadalupe to Juan Diego (an indigenous convert to Roman Catholicism, whose original pre-conversion name is given as Cuauhtlatoatzin) at the hill of Tepeyac.The book was written in the Nahuatl language.

[3] Historians have culled from church and academic records the information that he earned a bachelor's degree and registered for a course in canon law at the University of Mexico in 1623.

Aside from narrating the apparition, the Huei tlamahuiçoltica also contained an account of miracles occurring in its wake and a prayer of devotion to the Virgin.

Some authors[citation needed] have cited this passage as Laso de la Vega's admission of his debt to Sánchez for providing him a text on which to base his version of the apparition narrative.