of property the guardian incurred a quasi-contractual obligation, and was accordingly liable to the judicium or actio tutelae.
In the time of Gaius, women continued subject to guardianship after the age of puberty: the functions of the guardian were in their case confined to auctoritas, which in most cases was a mere formality; the power of administration vested in the woman, § 190.
§ 147. For an account of the different classes of Postumi see 2 § 130, comm.
§ 148. In filii manu must be regarded as an inaccurate expression: for filiusfamilias was incapable of all civil rights, including manus, and could only serve as a conduit-pipe by which the right of manus vested in his father.
§ 154. In the Code and Digest of Justinian the term tutor dativus is used to signify a guardian appointed by a magistrate. Cod. 5, 50, 5; Dig. 46, 6, 7.
DE LEGITIMA AGNATORVM TVTELA.
§ 155. In default of a testamentary guardian the statute of the Twelve Tables assigns the guardianship to the nearest agnates, who are hence called statutory guardians.
§ 156. Agnates (3, § 10) are persons related through males, that is, through their male ascendents: as a brother by the same father, such brother’s son or son’s son; a father’s brother, his son or son’s son. Persons related through female ascendents are not agnates but simply cognates. Thus, between an uncle and his sister’s son there is not agnation, but cognation: so the son of my aunt, whether she is my father’s sister, or my mother’s sister, is not my agnate, but my cognate, and vice versa; for children are members of their father’s family, not of their mother’s.
§ 157. In former times, the statute of the Twelve Tables made females as well as males wards of their agnates: subsequently a law of the Emperor Claudius abolished this wardship in the case of females: accordingly, a male below the age of puberty has his brother above the age of puberty or his paternal uncle for guardian, but a female cannot have such a guardian.
§ 158. Capitis deminutio extinguishes rights by agnation, while it leaves unaffected rights by cognation, because civil changes can take away rights belonging to civil law (jus civile), but not rights belonging to natural law (jus naturale).
§ 156. As to this definition of agnati see Moyle’s note to Inst. 1, 15, 1. The maxim here enunciated is calculated to give a false idea of the relation of the institutes of jus gentium to those of jus civile. Title by cognation is just as much an institute of positive law as title by agnation, though cognation, or blood-relationship, is in itself a natural and permanent tie, while agnation is an artificial one, and therefore only occasional. The synthesis of title and right in jus civile may be freakish and capricious, while that in jus gentium may be reasonable and expedient; but both are equally positive institutions, and both are equally mutable and liable to be overruled. Accordingly, the specious-sounding maxim, that revolutions in status or civil condition cannot affect such rights as are annexed to natural titles, crumbles away as soon as we examine it, for we find that it only holds good of the most insignificant change, the minima capitis minutio, 3 § 27, and that maxima and media capitis minutio extinguish title by cognation, which belongs to jus gentium, as well as title by agnation, which belongs to jus civile. Inst. 1, 16, 6.
The truth is, that the effects of a collision of Civil and Natural law fall under two very different classes, which it is important to distinguish.
1. If the command of the civil lawgiver, under the sway of motives financial, political, ethical, or religious, is highly imperious and absolutely compulsive, all natural titles with which it may come in conflict are absolutely void and inoperative: e. g. the Sc. Velleianum, prohibiting suretyship of women, allowed no naturalis obligatio to be produced by any such suretyship: and so with the laws prohibiting gambling and usury.
2. If the command of the civil law is less peremptory and absolute, it may deprive any conflicting natural title of plenary force, and yet leave to it a naturalis obligatio capable of acquiring efficacy by some machinery of positive law; e. g. the Sc. Macedonianum, prohibiting money loans to a filiusfamilias without the sanction of his father, made them irrecoverable by action, and yet the courts recognized in the borrowing filiusfamilias a naturalis obligatio, which was capable of novation, Dig. 46, 2, 19, and a bar to recovery back (condictio indebiti) in case of actual repayment, Dig. 14, 6, 10.
When Justinian consolidated the law of intestate succession and made the right of succession depend on cognation instead of agnation, he made a corresponding change in the obligation of guardianship, which henceforth devolved on cognates instead of agnates, women as formerly, with the exception of mothers and grandmothers, being excluded from the office, Nov. 118, 5.
DE CAPITIS MINVTIONE.
§ 159. Capitis deminutio is a change of a former status which occurs in three ways, i. e. it is either greatest, minor or mediate, or least.
§ 160. The greatest capitis deminutio is the simultaneous loss of citizenship and freedom, which happens to those who having evaded inscription on the censorial register are sold into slavery according to the regulations of the census, also under the — law when persons in violation of it make Rome their place of residence, and also under the Sc. Claudianum in case of persistent intercourse on the part of a free woman with another person’s slave in spite of the dissent and denunciation of the owner.
§ 161. Minor or intermediate loss of status is loss of citizenship unaccompanied by loss of liberty, and is incident to interdiction of fire and water.
§ 162. There is the least capitis deminutio retaining citizenship and freedom when a man’s position in the family only is changed, which occurs in adoption, coemption, and in the case of those given in mancipium to be afterwards manumitted, so that after each successive mancipation and manumission a capitis deminutio takes place.
§ 163. Not only by the two greater losses of status are rights of agnation extinguished, but also by the least: accordingly, if one of two children is emancipated, the elder cannot on the father’s decease be guardian to the younger by right of agnation.
§ 164. When agnates are entitled to be guardians, it is not all who are so entitled, but only those of the nearest degree.
§ 160. Ulpian also refers to the penalty incurred by incensi (11, 11 cum incensus aliquis venierit; cf. Cic. Pro Caec. 34, 99). The lex, the name of which is now illegible, may possibly be the lex Aelia Sentia, which by one of its provisions recalled into slavery dediticii, who resided in Rome or within a certain distance from it (§ 27), though there is the difficulty that it would be inaccurate to speak of such freedmen suffering loss of citizenship as well as liberty. Other grounds of reducing to slavery existed at various times, as surrender by the pater patratus to a foreign state for an offence against international law, Livy, 5, 36, or evasion of military service (populus quum eum vendidit qui miles factus non est, Cic. Pro Caec. 34, 11; Ulp. 11, 11), or capture by the enemy, § 129, or condemnation for a capital crime, which made the convict a slave of punishment (servus poenae, Inst. 1, 16, 1), i. e. reduced him to penal servitude, or condemnation of a freedman for ingratitude towards his patron (libertus ingratus circa patronum condemnatus, ibid.) whereupon he forfeited his freedom, or collusion of a freeman in consenting to be sold as a slave on condition of sharing the purchase-money (cum liber homo, major viginti annis, ad pretium participandum sese venundari passus est, Inst. 1, 3, 4). After the price had been paid, the vendor disappeared, the supposed slave recovered his liberty by a liberalis causa,
