[IULIANUS libro quadragensimo quarto digestorum. ] §41.5.2.prQui legatorum seruandorum causa in possessionem mittitur, non interpellat possessionem eius, qui pro herede usucapit: custodiae enim causa rem tenet.
[JULIANUS, from his forty-fourth book of Digests.] A person who is put into possession for the purpose of preserving legacies does not interrupt the possession of one who is acquiring by usucaption "as heir"; for he holds the thing for the purpose of custody.
quid ergo est? etiam impleta usucapione ius pignoris retinebit, ut non prius discedat, quam si solutum ei legatum fuerit aut eo nomine satisdatum.
What, then, is the result? Even after the usucaption is completed, he will retain his right of pledge, so that he does not withdraw until the legacy has been paid to him or security has been given on that account.
§41.5.2.1Quod uolgo respondetur causam possessionis neminem sibi mutare posse, sic accipiendum est, ut possessio non solum ciuilis, sed etiam naturalis intellegatur.
The common opinion that "no one can change the cause of his own possession for himself" must be understood in such a way that possession is understood to mean not only civil but also natural possession.
et propterea responsum est neque colonum neque eum, apud quem res deposita aut cui commodata est, lucri faciendi causa pro herede usucapere posse.
And for this reason, it has been answered that neither a tenant farmer nor a person with whom a thing has been deposited or to whom it has been lent can acquire by usucaption "as heir" for the sake of making a profit.
§41.5.2.2Filium quoque donatam rem a patre pro herede negauit usucapere Seruius, scilicet qui existimabat naturalem possessionem penes eum fuisse uiuo patre.
Servius also denied that a son could acquire by usucaption "as heir" a thing given to him as a gift by his father, obviously because he estimated that natural possession was in the hands of the son during the father's lifetime.
cui consequens est, ut filius a patre heres institutus res hereditarias a patre sibi donatas pro parte coheredum usucapere non possit.
From this it follows that a son appointed as heir by his father cannot acquire by usucaption "as heir" the hereditary things given to him by his father, in respect of the shares of his co-heirs.