Information of this Bull is derived from a work of the Carmelite Balduinus Leersius ("Collectaneum exemplorum et miraculorum" in "Bibliotheca Carmelit", I, Orléans, 1752, p. 210), who died in 1483. The privilege was not without opposition. In 1603 a book containing the privileges of the Carmelite Order, including the Sabbatine privilege, was condemned by the Portuguese Inquisition. Six years later the church in Portugal put all books mentioning the Sabbatine privilege on the Index of Forbidden Books. An appeal to Rome ended when the Roman authorities supported the Inquisition's ban.