His Apocalypsis nova, which contained prophecies of a pope, the "Angelic Pastor", who would work with an emperor to restore harmony in the church and the world, was influential well into the next century, in Rome and the monarchies of Spain and Portugal.

He then decided to become a monk, beginning his religious life in the Hieronymite monastery of Santa María de Guadalupe, where he spent about ten years.

[4] Desirous of joining the Franciscans, he abandoned that life and went to Úbeda, Castile, where he was received into the order in 1452, entering as a lay brother.

[6] Supernatural favors attributed to his intercession aided in the spread of his cultus, and the Bollandists testify to the authenticity of the title "Blessed" bestowed on him.

These friars were called the Amadeans or Amadists, and they had twenty-eight houses in Italy, the chief one being Saint Peter de Montorio in Rome.