The act of a person, perhaps through creating a will, that has the effect of depriving another person (an heir) of property that would have been distributed to that person under the laws of intestacy. The act of depriving a forced heir of the inheritance which the law gives him.

The just causes for which parents may disinherit their children are ten in number.

1. If the child has raised his or her hand to strike the parent, or if he or she has actually struck the parent; but a mere threat is not sufficient.

2. If the child has been guilty towards a parent, of cruelty, of a crime, or grievous injury.

3. If the child has attempted to take away the life of either parent.

4. If the child has accused either parent of any capital crime, except that of high treason.

5. If the child has refused sustenance to a parent, having the means to afford it.

6. If the child has neglected to take care of a parent that became insane.

7. If a child has refused to ransom them when detained in captivity.

8. If the child used any act of violence or coercion to hinder a parent from making a will.

9. If the child has refused to become security for a parent, having the means, in order to take him out of prison.

10. If the son or daughter, being a minor, marries without the consent of his or her parents.

The ascendants may disinherit their legitimate descendants coming to their succession for the first nine causes above expressed, when the acts of ingratitude there mentioned have been committed towards them, instead of towards their parents; but they cannot disinherit their descendants for the last cause.

Legitimate children, dying without issue, and leaving a parent, cannot disinherit him or her, unless for the seven following causes:

1. If the parent has accused the child of a capital crime except, however, the crime of high treason.

2. If the parent has attempted to take the child's life.

3. If the parent has, by any violence or force, hindered the child from making a will.

4. If the parent has refused sustenance to the child in necessity, having the means of affording it.

5. If the parent has neglected to take care of the child when in a state of insanity.

6. If the parent has neglected to ransom the child when in captivity.

7. If the father or mother have attempted the life the one of the other, in which case the child or descendant, making a will, may disinherit the one who has attempted the life of the other.

The testator must express in the will for what reason he disinherited his forced heirs, or any of them, and the other heirs of the testator are moreover obliged to prove the facts on which the disinherison is founded, otherwise, it is null.


The act by which a person deprives his heir of an inheritance, who, without such act, would inherit. By the common law, anyone may give his estate to a stranger, and thereby disinherit his heir apparent.