[POMPONIUS libro secundo ex Plautio. ] §21.3.2.prSi a Titio fundum emeris qui Sempronii erat isque tibi traditus fuerit, pretio autem soluto Titius Sempronio heres exstiterit et eundem fundum Maeuio uendiderit et tradiderit: Iulianus ait aequius esse priorem te tueri, quia et si ipse Titius fundum a te peteret, exceptione summoueretur et si ipse Titius eum possideret, Publiciana peteres.
[POMPONIUS, Book 2 from Plautius.] If you have bought from Titius a land which belonged to Sempronius, and it has been delivered to you, and, after the price was paid, Titius has become the heir to Sempronius and has sold and delivered the same land to Maevius: Julian says that it is more equitable that you, being prior, should be protected, because even if Titius himself were to claim the land from you, he would be repelled by an exception, and if Titius himself possessed it, you would claim it by the Publician action.