Ad Dig. 5,2,13Windscheid: Lehrbuch des Pandektenrechts, 7. Aufl. 1891, Bd. III, § 631, Note 9.Scævola, Opinions, Book III. Titia appointed her daughter heir, left her son a legacy, and provided by the same will that: “All those things which I have above directed to be given or done, I wish to be given and done by any person who will become my heir, or the possessor of my estate, even on intestacy. Also, whatever I may direct hereafter to be given or done, I leave in trust to the said person to see that it is given and done.” The question arose whether, if a sister gained a case in the Centumviral Court, the trust must be executed in compliance with the preceding clause? My answer to the inquiry whether a party can lawfully impose a trust on those whom he thinks will succeed him on intestacy, either as heirs, or as possessors of his estate, was that he could do so. Paulus states in a note that he approves the opinion that trusts imposed by a party who dies intestate need not be executed, as they would seem to have been ordered by a person of unsound mind.

Scævola, Opinions, Book IV. The heir of a debtor manumitted a slave who had been given in pledge. The question arose whether he became free. The answer was that, according to the facts stated, if the debt was still unpaid, he would become free by the manumission. Paulus: Therefore, if the money was paid, he would be free.