Mary of Jesus of Ágreda

Mary of Jesus of Ágreda, OIC, also known as the Abbess of Ágreda (Spanish: María de Jesús de Ágreda; born María Coronel y de Arana; 2 April 1602 – 24 May 1665), was an abbess and spiritual writer. She is best known for her extensive correspondence with King Philip IV of Spain and her reports of bilocation between Spain and New Spain. She was a noted mystic of her era.

A member of the Conceptionists, Mary of Jesus wrote 14 books, including a series of revelations about the life of the Blessed Virgin Mary. Her bilocation activity is said to have occurred between her cloistered monastery in rural Spain and the Jumano Indians of central New Mexico and West Texas, as well as Tucson, and inspired many Franciscan missionaries in the New World. In popular culture since the 17th century, she has been dubbed the "Lady in Blue" and the "Blue Nun", after the color of her order's habit.