Article III. On the Absence of an Impediment

Impediments can be: 1. a promise made to the partner not to use marriage; 2. a vow of chastity; 3. impotence for intercourse; 4. doubt concerning the validity of marriage.¹

¹ Affinity, taken in the sense in which it was formerly accepted, sometimes impeded the use of marriage by force of ecclesiastical law; it no longer stands in the way of that use.