§ 16.

  And nevertheless, so that a glorious remembrance of this wisest Doctor, if not for the sake of his own dignity, at least for the sake of human refinement, be refostered on account of his vast merits with more ardent study, We, induced by the example of Our precedessor, Pope Boniface VII, of happy remembrance, who gave instructions concerning the four holy Doctors, and that of Pope Pius V, concerning the aforesaid same St. Thomas, do precept, that his office be celebrated by all persons ecclesiastical, secular, and regular of whatever Orders as much in public as in private on the day before the Ides of July (with the aforesaid arrangement of Sixtus IV, concerning the second Sunday of the said month, not withstanding) and so that this should be explained and printed in the Calendars, with the name of the Doctor and the addition of "festum duplex", even if in the reforms of the most recent breviaries and of the Roman Missal it had been arranged otherwise, and We determine that it cannot be judged nor interpreted otherwise than as had been ordained by Us above, by whomsoever endowed with whatever authority