Council of Trent: Session XXIV, Reformation, Chapter IX

CHAPTER IX. By whom Secular Churches, not of any diocese, are to be visited.

Those things which have elsewhere been established by this same Council, under Paul III., of happy memory, and lately under our most blessed lord Pius IV., touching the diligence to be used by the Ordinaries in visiting benefices, even though exempted, the same shall also be observed in regard of those Secular churches which are said to be in no one's diocese; to wit they shall be visited by the bishop-as the delegate of the Apostolic See-whose cathedral church is the nearest, if he be able to do so; otherwise, by him whom the prelate of the said place has once for all selected in the provincial Council;-any privileges and customs whatsoever, even though immemorial, to the contrary notwithstanding.

Translation: J. Waterworth, The Canons and Decrees of the Council of Trent (1848), Hanover Historical Texts Project transcription (1995).