Section 14-04-01 - Grounds for annulling marriageA marriage may be annulled by an action in the district court to obtain a decree of nullity for any of the following causes existing at the time of the marriage:
1. That the party in whose behalf it is sought to have the marriage annulled was under the age of legal consent, as defined in section 14-03-02, or that such party was of such age as to require the consent of the party's parents or guardian and such marriage was contracted without such consent, unless, after attaining legal age, such party freely cohabited with the other as husband or wife.2. That the former husband or wife of either party was living, and the marriage with such former husband or wife was then in force.3. That either party was of unsound mind, unless such party, after coming to reason, freely cohabited with the other as husband or wife.4. That the consent of either party was obtained by fraud, unless such party afterwards, with full knowledge of the facts constituting the fraud, freely cohabited with the other as husband or wife.5. That the consent of either party was obtained by force, unless such party afterwards freely cohabited with the other as husband or wife.6. That either party was at the time of the marriage physically incapable of entering into the marriage state, and such incapacity continues and appears to be incurable.7. That the marriage was incestuous.