From the Council of Calchuth, celebrated in England, in the Presence of Legates of the Apostolic See, to Which King Alfwold Also Subscribed, A.D. 787

Canon XV. Unjust and incestuous marriages are forbidden to all, both with handmaids of God or other illicit persons, and with relatives and blood-relatives or alien wives; and he who does such things is altogether pierced by the sword of anathema, unless, having been corrected, he comes to his senses from so nefarious a presumption and, obeying his own bishop, corrects and recalls himself to the norm of equity.

Canon XVI. By decree legitimate inheritance is denied to the children of prostitutes. For by apostolic authority we judge daughters of adulteries and of nuns to be spurious and adulterous. For a virgin who has vowed herself to God and has put on the garment after the likeness of Saint Mary, we do not doubt to call the spouse of Christ ... We commanded by apostolic words that, for the avoidance of fornication, every layman have his own legitimate wife, and every laywoman have her own husband, so that according to the Lord they may have legitimate heirs from thence, and they may become heirs of God and coheirs of Christ. But as it is written in the canon, or in evangelical doctrine and in the decrees of apostolic dogmas, concerning legitimate marriages or the appointed time of marrying or abstaining, we presume to add nothing to these decrees or to take anything away.

Since the vow of virginity is approved at the very beginning of the canon, it is clear that the command which is then added does not have this bearing, that all should marry. But only the admonition of the Apostle is repeated: that 1. the layman who, namely, does not choose the state of virginity or continence by religious profession, but lives in the world; who 2. cannot contain himself and therefore, in order to avoid fornication, from which he ought to flee, wishes 3. to enter marriage; this man should enter a legitimate marriage. This only, those three things having been supposed, is prescribed: namely, the Fathers command nuptials to be legitimate.