When was Saint Guadalupe born?

There is no Saint Guadalupe, Guadalupe is a town in Mexico where the Blessed Virgin Mary appeared in the 16th century, thus giving her the title Our Lady of Guadalupe.

Clarification:

Our Lady of Guadalupe is a title given to the Virgin Mary as she appear to Juan Diego on the hillside of Tepeyac near Mexico City in December of 1531. Juan Diego was walking towards the town of Tlatelolco for Mass and catechism classes. The Virgin also appeared to the uncle of Juan Diego, Bernardino, when she cured him of an illness. Bernardino told his nephew the Blessed Virgin had ordered him to relate to the Bishop in what miraculous manne she had cured him. She also told Bernardino her image was to be known as "Santa Maria de Guadalupe" and thus she has been venerated by this title for nearly five centuries. There was no town named Guadalupe.