Our Lady of Guadalupe (Spanish: Nuestra Señora de Guadalupe), also the Virgin of Guadalupe (Virgen de Guadalupe) is a Roman Catholic icon of the Virgin Mary. The tradition relates that on 9 December 1531, Juan Diego, a recently converted Aztec peasant, had a vision of a young woman, a lady, while on a hill in the Tepeyac desert, near Mexico City. The lady in the vision asked him to build a church where they stood on the hill.