When the condition is casual or mixed, it shall be sufficient if it be fulfilled or complied with at any time during the life or after the death of the testator, unless he has ordered otherwise.\nShould it have existed or should it have been fulfilled at the time of the execution of the will and the testator did not know it, it shall be considered as fulfilled.\nIf he had knowledge thereof, it shall be considered as fulfilled only when of such nature that it can no longer exist or be carried out anew.\nHistory —Civil Code, 1930, § 725.
Puerto Rico Legal Code