Photo of Mexico's patron saint, La Virgen de Guadalupe (or Nuestra Señora de Guadalupe), a national symbol of Mexico. Tradition says that Mary appeared before Juan Diego, an Aztec converted to Christianity, in Mexico City in 1531. Mary requested to Juan Diego that they build a shrine where she appeared. The Bishop demanded proof of her appearance. Mary appeared to Juan Diego a second time and asked him to collect roses in his cloak. In his appearance before the Bishop, Juan Diego opened his cloak, letting the roses fall to the floor, and the image here was imprinted in the cloak, which can be seen at the Basílica de Guadalupe, in Mexico City.