By Ian Wilson … The celebrated mystic, St. John of the Cross, was born Juan de Yepes y Alvarez on June 24, 1542, in Fontiveros, Spain. Even as a child, John knew he wanted to live the ascetic life. After the untimely death of his father and older brother when John was only three years old, John was sent to a boarding school for poor orphaned children. There, he received a religious education, and served as an acolyte at an Augustinian monastery.