Council of Trent: Session 25
Chapter 17
Bishops shall maintain their dignity; nor conduct themselves with unworthy servility towards the Ministers of Kings, towards Lords, or Barons.
The holy Synod cannot but sorely grieve at hearing that certain bishops, forgetful of their own estate, do in no slight manner disgrace the pontifical dignity; comporting themselves with an unseemly kind of servility, both in church and out of it, before the ministers of kings, nobles, and barons; and, as if they were inferior ministers of the altar, not only most unworthily give them place; but even serve them in person. Wherefore, the holy Synod, detesting this and the like behaviour, doth, by renewing all the sacred canons, the General Councils, and other apostolical ordinances, which relate to the decorum and authority of the episcopal dignity, enjoin, that henceforth bishops abstain from the like; charging them that, both in church and out of it, having before their eyes their own rank and order, they every where bear in mind that they are fathers and pastors; charging also others, as well princes, as all persons whatsoever, to pay them paternal honour and due reverence.
Chapter 18
The Canons shall be exactly observed: if, at any time, a dispensation is to be granted in regard thereof, it shall be done with the most mature deliberation.
As it is expedient for the public good, to relax at times the restraint of law, thereby more completely to meet, for the common advantage, the cases and necessities which arise; even so, to dispense too often with the law, and to yield to petitioners on account of precedent, rather than upon any certain discrimination in regard of persons and circumstances, is nothing else but to open a way for each one to transgress the laws. Wherefore, be it known to all men, that the most sacred canons are to be exactly observed by all, and, as far as this is possible, without distinction. But if any urgent and just reason, and at times a greater good, shall require that some be dispensed with; this shall be granted, after the cause has been taken cognizance of, and after the most mature deliberation, and gratuitously, by all those soever to whom that dispensation appertains; and any dispensation granted otherwise shall be esteemed surreptitious.
Chapter 19
Duelling is prohibited under the most severe penalties.
The detestable custom of duelling, introduced by the contrivance of the devil, that by the bloody death of the body, he may accomplish the ruin of the soul, shall be utterly exterminated from the Christian world. Any emperor, kings, dukes, princes, marquises, counts, and temporal lords by whatsoever other name entitled, who shall grant a place within their territories for single combat between Christians, shall be thereupon excommunicated, and shall be understood to be deprived of jurisdiction and dominion over any city, castle, or place, in or at which they have permitted the duel to take place, which they hold of the church; and if those places be held as a fief they shall forthwith escheat to their direct lords.
As to the persons who have fought, and those who are called their seconds (sponsors), they shall incur the penalty of excommunication, and the confiscation of all their property, and of perpetual infamy, and are to be punished as homicides, according to the sacred canons; and if they have perished in the conflict itself, they shall be for ever deprived of ecclesiastical sepulture. Those also who have given counsel in the case of a duel, whether for the question of right, or fact, or have in any other way whatever persuaded any one thereunto, as also the spectators thereof, shall be subjected to the bond of excommunication, and of a perpetual malediction; any privilege soever, or evil custom, though immemorial, notwithstanding.