Tepeyac or the Hill of Tepeyac, historically known by the names "Tepeyacac" and "Tepeaquilla", is located inside Gustavo A. Madero, the northernmost delegación or borough of the Mexican Federal District. According to the Catholic tradition, it is the site where Saint Juan Diego met the Virgin of Guadalupe in December of 1531, and received the iconic image of the Lady of Guadalupe.