Institutionum libri
Ex libro XII
Dig. 25,7,3Marcianus libro duodecimo institutionum. In concubinatu potest esse et aliena liberta et ingenua et maxime ea quae obscuro loco nata est vel quaestum corpore fecit. alioquin si honestae vitae et ingenuam mulierem in concubinatum habere maluerit, sine testatione hoc manifestum faciente non conceditur. sed necesse est ei vel uxorem eam habere vel hoc recusantem stuprum cum ea committere: 1Nec adulterium per concubinatum ab ipso committitur. nam quia concubinatus per leges nomen assumpsit, extra legis poenam est, ut et Marcellus libro septimo digestorum scripsit.
Marcianus, Institutes, Book XII. The freedwoman of another can be kept in concubinage as well as a woman who is born free, and this is especially the case where she is of a low origin, or has lived by prostitution; otherwise if a man prefers to keep a woman of respectable character and who is free born in concubinage, it is evident that he can not be permitted to do so without openly stating the fact in the presence of witnesses; but it will be necessary for him either to marry her, or if he refuses, to subject her to disgrace. 1Adultery is not committed by a party who lives with a concubine because concubinage obtains its name from the law, and does not involve a legal penalty; as Marcellus states in the Seventh Book of the Digest.
Dig. 50,7,5Marcianus libro duodecimo institutionum. Sciendum est debitorem rei publicae legatione fungi non posse: et ita divus Pius Claudio Saturnino et Faustino rescripsit. 1Sed et eos, quibus ius postulandi non est, legatione fungi non posse et ideo harena missum non iure legatum esse missum divi Severus et Antoninus rescripserunt. 2Debitores autem fisci non prohibentur legatione fungi. 3Si accusatio alicuius publice instituta sit, non est compellendus accusator ad eum legationem suscipere, qui se amicum vel domesticum dicit eius, qui accusatur: et ita divi fratres Aemilio Rufo rescripserunt. 4Legati vicarios dare non alios possunt nisi filios suos. 5Ordine unusquisque munere legationis fungi cogitur: et non alias compellendus est munere legationis fungi, quam si priores, qui in curiam lecti sunt, functi sint. sed si legatio de primoribus viris desideret personas et qui ordine vocantur inferiores sint, non esse observandum ordinem divus Hadrianus ad Clazomenios rescripsit. 6Praecipitur autem edicto divi Vespasiani omnibus civitatibus, ne plures quam ternos legatos mittant.
Marcianus, Institutes, Book XII. It should be noted that a debtor to the government cannot perform the duties devolving on an embassy. This the Divine Pius stated in a Rescript addressed to Claudius Saturninus and Faustinus. 1Persons who have not the right to prosecute cannot exercise the function of an envoy; and the Divine Severus and Antoninus stated in a Rescript that anyone who had been appointed to contend in the arena could not legally be one. 2Debtors of the Treasury, however, are not forbidden to perform the duties of an envoy. 3Where a charge has been publicly brought against anyone the accuser should not be compelled to undertake the duties of an envoy to one who alleges that he is a friend, or belongs to the family of the accused party. This was stated by the Divine Brothers in a Rescript to Æmilius Rufus. 4Envoys cannot appoint others their substitutes, with the exception of their sons. 5Everyone is compelled to perform the functions of an envoy in his turn, but is not obliged to do so until those who have been chosen before him in an assembly have performed theirs. If, however, the embassy requires men of the first rank, and those who are called in their order are of inferior degree, the regular order should not be observed, as the Divine Hadrian stated in a Rescript addressed to the Clazomenians. 6It is provided by an Edict of the Divine Vespasian addressed to all cities that one municipality shall not send more than three envoys.