Council of Trent: Session XXIV, Reformation of Marriage, Chapter IX

CHAPTER IX. Temporal lords, or magistrates, shall not attempt anything contrary to the liberty of marriage.

Earthly affections and desires do for the most part so blind the eyes of the understanding of temporal lords and magistrates, as that, by threats and ill-usage, they compel both men and women, who live under their jurisdiction,-especially such as are rich, or who have expectations of a great inheritance,-to contract marriage against their inclination with those whom the said lords or magistrates may prescribe unto them. Wherefore, seeing that it is a thing especially execrable to violate the liberty of matrimony, and that wrong comes from those from whom right is looked for, the holy Synod enjoins on all, of whatsoever grade, dignity, and condition they may be, under pain of anathema to be ipso facto incurred, that they put no constraint, in any way whatever, either directly or indirectly, on those subject to them, or any others whomsoever, so as to hinder them from freely contracting marriage.

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