[IDEM libro uicesimo nono digestorum. ] §28.6.26.prSi pater filium impuberem heredem scripserit et ei substituerit, si quis sibi post mortem natus erit, deinde uiuo fratre postumus natus fuerit, testamentum rumpetur: post mortem autem fratris uiuo patre natus solus heres patri suo existet.
[THE SAME, Book 29 of Digests.] If a father has designated his impuberate son as heir and has substituted to him any child who might be born to himself after his death, and subsequently, while the brother is still living, a posthumous child is born, the will will be broken; but one born after the death of the brother while the father is still living will exist as the sole heir to his father.