A claim to the court for annulment of a marriage may be made in any of the following cases: <Amended on Jan. 13, 1990; Mar. 31, 2005>
1. Where a marriage is in violation of the provisions of Articles 807 through 809 (excluding the cases falling under the nullity of marriage under Article 815; hereafter in Articles 817 and 820 the same shall apply) or 810;
2. Where, at the time of marriage, one of the parties was unaware that the other party had been suffering from a malignant disease or had any other serious reason which would make marital life unable to continue;
3. Where the declaration of intention to marry has been made by fraud or duress.