A decree of the Congregation of the Council declaring invalid [so far as the laws of the Roman Catholic Church are concerned] any marriage of a Roman Catholic, or of a person who has ever been a Roman Catholic, if not contracted before a duty qualified priest (or the bishop of the diocese) and at least two witnesses. The decree was issued Aug. 2, 1907, and took effect on Easter Apr. 19, 1908. The decree by its terms does not affect mixed marriages (those between Roman Catholics and persons of another faith) in Germany.  [Webster 1913 Suppl.]