Informaciones Jurídicas de 1666 (English: The Proceedings of 1666) is a Spanish document that helped support the apparition of the Virgin Mary to Juan Diego Cuauhtlatoatzin at the hill of Tepeyac in 1531.
The Proceedings of 1666 consist of a series of investigations, record examinations, testimonies from artists, physicians, and Aztec historians, and oral accounts from elderly men and women who had knowledge and experience with Juan Diego and his contemporaries.
[1] As soon as Bishop Zumárraga and his subordinates viewed Juan Diego's miraculous tilma painting on December 12, 1531, devotion to Our Lady of Guadalupe began.
According to A.M. Sada Lambretón, the Proceedings of 1666 are very important as proof of the Guadalupe tradition and as support to the life, virtues, reputation and holiness and cult of Blessed Juan Diego.
After a revival of the proceedings in 1723 by Bishop José Pérez de Lanciego Aguilar, the Office of Our Lady of Guadalupe was formally approved in 1894.