Libro Tercero · Título II Capítulo III. Revocación, nulidad, falsedad y caducidad de las disposiciones testamentarias

A will executed without observance of the essential solemnities established by law is void.

A closed will shall also be void when the envelope containing it appears broken.

A will executed with violence, deceit, or fraud is voidable.

The testator may not prohibit the will from being contested in cases where nullity is declared by law.

Whoever in any manner exerts coercion upon the testator to make, alter or revoke his will or any testamentary disposition, loses all rights to which he is entitled by the will or by law in the property of the inheritance.

Whoever prevents a person from making, revoking or varying his will shall also incur the penalty of the preceding article.

If the subsequent will is declared null or false, the prior one shall subsist.

The will may not be revoked in whole or in part except with the solemnities necessary to make a will.

Every will is revoked by the execution of another subsequent one. However, the testator may expressly leave in force all or part of the prior will.

Donations by reason of death made prior to the will shall lapse unless the testator provides otherwise.

When a will has been executed expressly giving as cause the death of the heir instituted in the previous one, the latter shall be valid and the former shall be deemed not executed if the news of the death proves false.

By the alienation made by the testator of the whole or part of a thing left in the will, his disposition relating to the thing or part alienated is deemed revoked, unless it returns to his ownership.

The donation or legacy of a credit made in a will is revoked in whole or in part if the testator receives in payment the whole or part of the amount owed to him or if for any reason he has cancelled the credit.

The will produces no effect with respect to the institution of the heir, if the person named has legal incapacity to inherit.

The testamentary disposition in which something is left subject to a condition lapses if the heir or legatee to whom it refers dies before it is fulfilled.

The testamentary disposition does not lapse if the testator has appointed a substitute heir for the case in which the instituted heir dies before him, or does not wish to, or cannot accept the inheritance.

Neither the inheritance nor the legacy left from a certain day or from a determined time lapses even when the heir or the legatee dies before the day has arrived or the time fixed by the testator has expired.

The testamentary disposition of a specific thing, in favor of any person, shall have no effect if the thing is destroyed without fault of the person obligated to deliver it.

In all cases in which the institution of heir lapses or loses its effect, the inheritance shall pass to the legal heirs.