12 If, after making his will, a testator alienates property which he has therein given away as a legacy, Celsus is of opinion that the legatee may still claim it unless the testator's intention was thereby to revoke the bequest, and there is a rescript of the Emperors Severus and Antoninus to this effect, as well as another which decides that if, after making his will, a testator pledges land which he had therein given as a legacy, the part which has not been alienated can in any case be claimed, and the alienated part as well if the alienator's intention was not to revoke the legacy.
13 If a man bequeaths to his debtor a discharge from his debt, the legacy is good, and the testator's heir cannot sue either the debtor himself, or his heir, or any one who occupies the position of heir to him, and the debtor can even compel the testator's heir to formally release him. Moreover, a testator can also forbid his heir to claim payment of a debt before a certain time has elapsed.
14 Contrariwise, if a debtor leaves his creditor a legacy of what he owes him, the legacy is void, if it includes no more than the debt, for the creditor is thus in no way benefited; but if the debtor unconditionally bequeaths a sum of money which the creditor cannot claim until a definite date has arrived or a condition has been satisfied, the legacy is good, because it confers on the creditor a right to earlier payment. And, even if the day arrives, or the condition is satisfied, during the testator's lifetime, Papinian decides, and rightly, that the legacy is nevertheless a good one, because it was good when first written; for the opinion that a legacy becomes void, because something happens to deprive it of all material effect, is now rejected.
15 If a man leaves his wife a legacy of her dowry, the gift is good, because the legacy is worth more than a mere right of action for the dowry. If, however, he has never received the dowry which he bequeaths, the Emperors Severus and Antoninus have decided by rescript that the legacy is void, provided the general term 'dowry' is used, but good, if in giving it to the wife a definite sum or thing is specified, or described generally by reference to the dowry deed.
16 If a thing bequeathed perishes through no act of the heir, the loss falls on the legatee: thus if a slave belonging to another person, who is given in this way, is manumitted through no act of the heir, the latter is not bound. If, however, the slave belongs to the heir, who manumits him, Julian says that he is bound, and it is immaterial whether he knew or not that the slave had been bequeathed away from him.
17 If a testator gives a legacy of female slaves along with their offspring, the legatee can claim the latter even if the mothers are dead, and so again if a legacy is given of ordinary slaves along with their vicarii or subordinates, the latter can be claimed even if the former are dead. But if the legacy be of a slave along with his peculium, and the slave is dead, or has been manumitted or alienated, the legacy of the peculium is extinguished; and similarly, if the legacy be of land with everything upon it, or with all its instruments of tillage, by the alienation of the land the legacy of the instruments of tillage is extinguished.
18 If a flock be given as a legacy, which is subsequently reduced to a single sheep, this single survivor can be claimed; and Julian says that in a legacy of a flock are comprised sheep which are added to it after the making of the will, a flock being but one aggregate composed of distinct members, just as a house is but one aggregate composed of distinct stones built together. So if the legacy consists of a house, we hold that pillars or marbles added to it after the making of the will pass under the bequest.
20 If a slave's peculium be given as a legacy, the legatee undoubtedly profits by what is added to it, and is a loser by what is taken from it, during the testator's lifetime. Whatever the slave acquires in the interval between the testator's death and the acceptance of the inheritance belongs, according to Julian, to the legatee, if that legatee be the slave himself who is manumitted by the will, because a legacy of this kind vests from the acceptance of the inheritance: but if the legatee be a stranger, he is not entitled to such acquisitions, unless they are made by means of the peculium itself. A slave manumitted by a will is not entitled to his peculium unless it is expressly bequeathed to him, though, if the master manumits him in his lifetime, it is enough if it be not expressly taken from him, and to this effect the Emperors Severus and Antoninus have decided by rescript: as also, that a legacy of his peculium to a slave does not carry with it the right to sue for money which he has expended on his master's account, and that a legacy of a peculium may be inferred from directions in a will that a slave is to be free so soon as he has made a statement of his accounts and made up any balance, which may be against him, from his peculium.
21 Incorporeal as well as corporeal things can be bequeathed: thus a man can leave a legacy even of a debt which is owed to him, and the heir can be compelled to transfer to the legatee his rights of action, unless the testator has exacted payment in his lifetime, in which case the legacy is extinguished. Again, such a legacy as the following is good: 'be my heir bound to repair so and so's house, or to pay so and so's debts.'
22 If a legacy be a general one, as of a slave or some other thing not specifically determined, the legatee is entitled to choose what slave, or what thing, he will have, unless the testator has expressed a contrary intention.