Council of Trent: Session XXV, Regulars and Nuns, Chapter XIII

CHAPTER XIII. The Bishop shall settle disputes about precedency. Exempted persons, not living in the more strict enclosures, are obliged to attend at public Processions.

All disputes about precedence, which very often, with very great scandal, arise between ecclesiastics, both Secular and Regular, as well at public processions, as at those which take place in burying the dead, or carrying the canopy, and on other such occasions, the bishop shall settle, without regarding any appeal; anything to the contrary notwithstanding. And all exempted persons whatsoever, as well Secular as Regular clerics, and even monks, on being summoned to public processions, shall be obliged to attend; those only being excepted who always live in more strict enclosure.

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