Article 921

The following shall be sufficient causes for disinheriting a spouse:

(1) When the spouse has been convicted of an attempt against the life of the testator, his or her descendants, or ascendants;

(2) When the spouse has accused the testator of a crime for which the law prescribes imprisonment of six years or more, and the accusation has been found to be false;

(3) When the spouse by fraud, violence, intimidation, or undue influence cause the testator to make a will or to change one already made;

(4) When the spouse has given cause for legal separation;

(5) When the spouse has given grounds for the loss of parental authority;

(6) Unjustifiable refusal to support the children or the other spouse. (756, 855, 674a)