Art. 840. When the testator leaves legitimate children or descendants, and natural children, legally acknowledged, each of the latter shall have a right to one-half of the portion pertaining to each of the legitimate children who have not received any betterment, provided it can be included in the third which may be freely disposed of, from which it must be taken, after the burial and funeral expenses have been deducted.

The legitimate children may pay the portion pertaining to the natural ones in cash, or in other property of the estate, according to just rules.

Art. 841. Should the testator not leave any legitimate children or descendants, but legitimate ascendants, the acknowledged natural children shall have a right to one-half of the part of the estate which can be freely disposed of by the testator.

This is understood without prejudice to the legal portion of the surviving spouse, in accordance with article 836; so that when the spouse survives with acknowledged natural children, what may be lacking to make up their legal portion shall be awarded to them as a naked property right during the life of the spouse.

Art. 842. When the testator leaves no legitimate descendants or ascendants, the acknowledged natural children shall be entitled to a third of the inheritance.

Art. 843. The rights granted natural children by the foregoing article are transmitted on their death to their legitimate descendants.

Art. 844. The hereditary portion of children legitimized by royal concession shall be equal to that established by law in favor of acknowledged natural children.

Art. 845. Illegitimate children who have not the character of natural children shall be entitled to support only.

The obligation of the person who is to support them shall be transmitted to his or her heirs, and shall continue until said children attain their majority, and in case they should be incapacitated, while the incapacity lasts.