8 It was, therefore, very pleasant for Us to be able to believe that these sons of Ours, thus pardoned, would at once on their return to Poland give effect to their promises, and on this account We hastened to advise you, Venerable Brethren, to receive them and their companions, now that they professed entire obedience to your authority, with equal mercy and to restore them legally, if their acts corresponded with their promises, to their faculties for exercising their priestly functions. But the event has deceived Our hopes; for We have learnt by recent documents that they have again opened their minds to lying revelations, and that since their return to Poland, they not only have not yet shown you, Venerable Brethren, the respect and obedience they promised, but that they have written to their companions a letter quite opposed to truth and genuine obedience.
Source: Tribus Circiter (Vatican.va)