ARTICLE VIII
All the grants of land made before the 24th of January, 1818, by His Catholic Majesty, or by his lawful authorities, in the said territories ceded by His Majesty to the United States, shall be ratified and confirmed to the persons in possession of the lands, to the same extent that the same grants would be valid if the territories had remained under the dominion of His Catholic Majesty. But the owners in possession of such lands, who, by reason of the recent circumstances of the Spanish nation, and the revolutions in Europe, have been prevented from fulfilling all the conditions of their grants, shall complete them within the terms limited in the same, respectively, from the date of this treaty; in default of which the said grants shall be null and void. All grants made since the said 24th of January, 1818, when the first proposal, on the part of His Catholic Majesty, for the cession of the Floridas was made, are hereby declared and agreed to be null and void.