Previously in the Republican era, the father of an unmarried daughter could bring a charge of rape against a man who had sex with her, regardless of her consent, because marriage was required for sexual access to women who had standing as citizens. Rape was a capital crime, but the man's intentions mattered, and paternal accusations of "rape" – including bride abduction or elopement when the woman had consented – were generally settled privately among families. Adultery likewise was normally considered a private matter for families to deal with, not a serious criminal offense, though the censors could reduce the status of men who debased the institution of marriage, and some cases of adultery and sexual transgressions by women had been brought to the aediles for judgment.
Roman inheritance law was one reason that a man of high rank would live with a woman in concubinage after the death of his first wife; the claims of his children from the first marriage could not be challenged by naturales children from the later union. Marcus Aurelius had a concubina rather than remarrying so that relations with his children would not be complicated by a stepmother. Children are mentioned infrequently in connection with concubinatus, and in her study of the subject Beryl Rawson wondered whether children were perhaps not particularly desired from this relationship.
In contrast to marriage, which required an intention to marry on the part of both parties and for which the social equality of partners was preferred, legal cases determining whether a relationship was marriage or concubinatus generally prioritize the intentions of the male partner.
The title of concubine was not necessarily derogatory in ancient Rome, as it was inscribed on tombstones. Almost 200 known inscriptions, mostly from Rome and the Italian peninsula, name women as concubinae; of these, 67 are identified as libertae, freedwomen. Only three are ingenuae, freeborn. Concubinae are included in inscriptions on family tombs, and it is not unusual to find them listed along with the male head of household's legitimate children and deceased wife. Epitaphs for the whole family to be laid to rest in a particular spot often were set up on a single stone in advance or were added to later, complicating the determination of the order in which the man might have had wives and concubines. In Rome, an inscription set up by the lictor and freedman Marcus Servilius Rufus records three female partners: a wife (uxor), a concubina specified as deceased, and another wife, listed in that order. The first wife named was probably his partner at the time Rufus had the inscription made; the concubina already deceased; and the second wife added when he remarried after the death of the first.
McGinn 1991, pp. 335–375. - McGinn, Thomas A. J. (1991). "Concubinage and the Lex Iulia on Adultery". Transactions of the American Philological Association. 121: 335–375. doi:10.2307/284457. JSTOR 284457. https://doi.org/10.2307%2F284457
Rawson 1974, p. 289. - Rawson, Beryl (1974). "Roman Concubinage and Other De Facto Marriages". Transactions of the American Philological Association. 104. JHUP: 279–305. doi:10.2307/2936094. JSTOR 2936094. https://doi.org/10.2307%2F2936094
Treggiari 1981a, p. 53. - Treggiari, Susan (1981a). "Contubernales in CIL VI". Phoenix. 35 (1). CAC: 42–69. doi:10.2307/1087137. JSTOR 1087137. https://doi.org/10.2307%2F1087137
Treggiari 1981b, p. 59. - Treggiari, Susan (1981b). "Concubinae". Papers of the British School at Rome. 49: 59–81. doi:10.1017/S0068246200008473. https://doi.org/10.1017%2FS0068246200008473
Williams 2006, pp. 413–414. - Williams, Kathryn F. (2006). "Pliny and the Murder of Larcius Macedo". Classical Journal. 101 (4): 409–424. JSTOR 30038018. https://www.jstor.org/stable/30038018
Buckland 1908, pp. 77, 401, 609. - Buckland, W. W. (1908). The Roman Law of Slavery: The Condition of the Slave in Private Law from Augustus to Justinian. Cambridge University Press.
J. N. Adams, "Words for 'Prostitute' in Latin," Rheinisches Museum für Philologie 126:3/4 (1983), p. 355.
Aulus Gellius, Attic Nights 4.3.3, as cited by Bonnie MacLachlan, Women in Ancient Rome: A Sourcebook (Bloomsbury, 2013), p 15.
Lefkowitz 2005, p. 95. - Lefkowitz, Mary R.; Fant, Maureen B. (2005). Women's Life in Greece and Rome. Baltimore: JHUP. ISBN 0-8018-4474-6.
Amy Richlin, Arguments with Silence: Writing the History of Roman Women (University of Michigan Press, 2014), p. 227; Slave Theater in the Roman Republic: Plautus and Popular Comedy (Cambridge University Press, 2017), pp. 276–277, 495; The Garden of Priapus: Sexuality and Aggression in Roman Humor, rev. ed. (Oxford University Press, 1992) p. 97. /wiki/Amy_Richlin
Lindheim 2003, p. 119. - Lindheim, Sara H. (2003). Mail and Female: Epistolary Narrative and Desire in Ovid's Heroides. University of Wisconsin Press.
Murgatroyd 2005, p. 267. - Murgatroyd, Paul (2005). Mythical and Legendary Narrative in Ovid's Fasti. Brill.
Armstrong 2006, p. 256. - Armstrong, Rebecca (2006). Cretan Women: Pasiphaë, Ariadne, and Phaedra in Latin Poetry. Oxford Classical Monographs. Oxford University Press.
Adams, "Words for 'Prostitute'," p. 355, citing Isidore of Seville, Etymologiae 10.288. /wiki/Isidore_of_Seville
Richlin, The Garden of Priapus, p. 97
Bruce W. Frier and Thomas A. J. McGinn, A Casebook on Roman Family Law (Oxford University Press, 2004), pp. 38 and 52.
Amy Richlin,"Not before Homosexuality: The Materiality of the cinaedus and the Roman Law against Love between Men", Journal of the History of Sexuality 3:4 (1993), p. 30. /wiki/Amy_Richlin
Nephele Papakonstantinou and Anne Stevens, "Raptus and Roman law," Clio 52 (2020), pp. 25–26.
Papakonstantinou, "Raptus and Roman law," pp. 25–26.
Judith Evans-Grubbs, "Abduction Marriage in Antiquity: A Law of Constantine (CTh IX. 24. I) and Its Social Context," Journal of Roman Studies 79 (1989), pp. 62–65, 73–74, 76.
Catharine Edwards, The Politics of Immorality in Ancient Rome (Cambridge University Press, 1993), pp. 34–35.
Martha Nussbaum, "The Incomplete Feminism of Musonius Rufus, Platonist, Stoic, and Roman," in The Sleep of Reason: Erotic Experience and Sexual Ethics in Ancient Greece and Rome (University of Chicago Press, 2002), p. 305. /wiki/Martha_Nussbaum
Susan Dixon, The Roman Family (Johns Hopkins University Press, 1992), p. 79.
Jane Gardner, Women in Roman Law and Society pp. 120–121.
McGinn 1991, p. 338. - McGinn, Thomas A. J. (1991). "Concubinage and the Lex Iulia on Adultery". Transactions of the American Philological Association. 121: 335–375. doi:10.2307/284457. JSTOR 284457. https://doi.org/10.2307%2F284457
McGinn 1991, p. 338. - McGinn, Thomas A. J. (1991). "Concubinage and the Lex Iulia on Adultery". Transactions of the American Philological Association. 121: 335–375. doi:10.2307/284457. JSTOR 284457. https://doi.org/10.2307%2F284457
Treggiari 1981b, p. 60.. - Treggiari, Susan (1981b). "Concubinae". Papers of the British School at Rome. 49: 59–81. doi:10.1017/S0068246200008473. https://doi.org/10.1017%2FS0068246200008473
McGinn 1991, p. 338. - McGinn, Thomas A. J. (1991). "Concubinage and the Lex Iulia on Adultery". Transactions of the American Philological Association. 121: 335–375. doi:10.2307/284457. JSTOR 284457. https://doi.org/10.2307%2F284457
Treggiari 1981b, p. 71–74. - Treggiari, Susan (1981b). "Concubinae". Papers of the British School at Rome. 49: 59–81. doi:10.1017/S0068246200008473. https://doi.org/10.1017%2FS0068246200008473
Lefkowitz 2005, p. 110. - Lefkowitz, Mary R.; Fant, Maureen B. (2005). Women's Life in Greece and Rome. Baltimore: JHUP. ISBN 0-8018-4474-6.
McGinn 1991, pp. 342–343 et passim. - McGinn, Thomas A. J. (1991). "Concubinage and the Lex Iulia on Adultery". Transactions of the American Philological Association. 121: 335–375. doi:10.2307/284457. JSTOR 284457. https://doi.org/10.2307%2F284457
Fantham 2011, p. 124. - Fantham, Elaine (2011). Roman Readings: Roman Response to Greek Literature from Plautus to Statius and Quintilian. De Gruyter.
Treggiari 1981a, p. 58 n. 42, citing Cicero, De Oratore 1.183; Quintilian, Declamationes 247 (Ritter 11.15); Digest 23.2.24 (Modestinus), 24.1.32.13 (Ulpian); 39.5.31 pr. (Papinian). - Treggiari, Susan (1981a). "Contubernales in CIL VI". Phoenix. 35 (1). CAC: 42–69. doi:10.2307/1087137. JSTOR 1087137. https://doi.org/10.2307%2F1087137
Stocquart 1907, p. 305, citing Cod. 5, 27. - Stocquart, Emile (March 1907). Sherman, Charles Phineas (ed.). "Marriage in Roman law". Yale Law Journal. 16 (5). Translated by Bierkan, Andrew T.: 303–327. doi:10.2307/785389. JSTOR 785389. Retrieved 2020-09-15. https://digitalcommons.law.yale.edu/cgi/viewcontent.cgi?article=1887&context=ylj
Kiefer 2012, p. 49. - Kiefer, O. (12 November 2012). Sexual Life In Ancient Rome. Routledge. ISBN 978-1-136-18198-6. https://books.google.com/books?id=XXksBgAAQBAJ
Judith Evans-Grubbs, "'Marriage More Shameful Than Adultery'": Slave-Mistress Relationships, 'Mixed Marriages', and Late Roman Law," Phoenix 47:2 (1993), pp. 127–128.
Katharine P. D. Huemoeller, "Freedom in Marriage? Manumission for Marriage in the Roman World," Journal of Roman Studies 110 (2020), p. 134.
Stocquart 1907, p. 316. - Stocquart, Emile (March 1907). Sherman, Charles Phineas (ed.). "Marriage in Roman law". Yale Law Journal. 16 (5). Translated by Bierkan, Andrew T.: 303–327. doi:10.2307/785389. JSTOR 785389. Retrieved 2020-09-15. https://digitalcommons.law.yale.edu/cgi/viewcontent.cgi?article=1887&context=ylj
McGinn 1991, p. 359, citing Marcianus, Digest 25.7.3 pr.–1, as a vexed passage. - McGinn, Thomas A. J. (1991). "Concubinage and the Lex Iulia on Adultery". Transactions of the American Philological Association. 121: 335–375. doi:10.2307/284457. JSTOR 284457. https://doi.org/10.2307%2F284457
Berger, s.v. testatio, Encyclopedic Dictionary of Roman Law, p. 735.
McGinn 1991, p. 361, especially n. 116. - McGinn, Thomas A. J. (1991). "Concubinage and the Lex Iulia on Adultery". Transactions of the American Philological Association. 121: 335–375. doi:10.2307/284457. JSTOR 284457. https://doi.org/10.2307%2F284457
Cohabitation with a freeborn prostitute would not be a crime, since sex with a prostitute by definition was not stuprum.
McGinn 1991, pp. 360–363, 366. - McGinn, Thomas A. J. (1991). "Concubinage and the Lex Iulia on Adultery". Transactions of the American Philological Association. 121: 335–375. doi:10.2307/284457. JSTOR 284457. https://doi.org/10.2307%2F284457
Stocquart 1907, p. 305, citing Cod. 5, 27. - Stocquart, Emile (March 1907). Sherman, Charles Phineas (ed.). "Marriage in Roman law". Yale Law Journal. 16 (5). Translated by Bierkan, Andrew T.: 303–327. doi:10.2307/785389. JSTOR 785389. Retrieved 2020-09-15. https://digitalcommons.law.yale.edu/cgi/viewcontent.cgi?article=1887&context=ylj
Because a slave was denied legal personhood, a male slave could not exercise paternal rights under Roman law, and his child might be considered both "natural" and spurius.[43] /wiki/Legal_personhood
Buckland 1908, p. 77. - Buckland, W. W. (1908). The Roman Law of Slavery: The Condition of the Slave in Private Law from Augustus to Justinian. Cambridge University Press.
Berger, s.v. filius iustus (= filius legitimus), p. 473, and spurius, p. 714, in Encyclopedic Dictionary of Roman Law (American Philological Society, 1953, 1991).
Judith Evans-Grubbs, "'Marriage More Shameful Than Adultery'": Slave-Mistress Relationships, 'Mixed Marriages', and Late Roman Law," Phoenix 47:2 (1993), p. 149.
Kiefer 2012, p. 50. - Kiefer, O. (12 November 2012). Sexual Life In Ancient Rome. Routledge. ISBN 978-1-136-18198-6. https://books.google.com/books?id=XXksBgAAQBAJ
Dixon 1992, p. 93. - Dixon, Suzanne (1992). The Roman Family. Johns Hopkins University Press.
Rawson 1974, p. 291 n. 44. - Rawson, Beryl (1974). "Roman Concubinage and Other De Facto Marriages". Transactions of the American Philological Association. 104. JHUP: 279–305. doi:10.2307/2936094. JSTOR 2936094. https://doi.org/10.2307%2F2936094
Treggiari 1991, p. 52. - Treggiari, Susan (1991). Roman Marriage: "Iusti Coniuges" from the Time of Cicero to the Time of Ulpian. Oxford University Press.
Treggiari 1991, p. 52. - Treggiari, Susan (1991). Roman Marriage: "Iusti Coniuges" from the Time of Cicero to the Time of Ulpian. Oxford University Press.
Sandon & Scalso 2020, p. 153 n. 5. - Sandon, Tatjana; Scalso, Luca (2020). "More Than Mistresses, Less Than Wives: The Role of Roman Concubinae in Light of Their Funerary Monuments". Papers of the British School at Rome. 88: 151–184. doi:10.1017/S0068246220000057. https://doi.org/10.1017%2FS0068246220000057
When the Augustan legislation was first passed, a marriage with the unsuitable female partner would remain valid, though the status of the male partner was officially degraded. A senatus consultum under Marcus Aurelius and Commodus voided the marriage.[52] /wiki/Senatus_consultum
McGinn 1991, pp. 337 n. 11, 341 n. 28. - McGinn, Thomas A. J. (1991). "Concubinage and the Lex Iulia on Adultery". Transactions of the American Philological Association. 121: 335–375. doi:10.2307/284457. JSTOR 284457. https://doi.org/10.2307%2F284457
McGinn 1991, p. 341 n. 28. - McGinn, Thomas A. J. (1991). "Concubinage and the Lex Iulia on Adultery". Transactions of the American Philological Association. 121: 335–375. doi:10.2307/284457. JSTOR 284457. https://doi.org/10.2307%2F284457
McGinn 1991, p. 338, citing in n. 15 Augustine, Confessions 4.2. - McGinn, Thomas A. J. (1991). "Concubinage and the Lex Iulia on Adultery". Transactions of the American Philological Association. 121: 335–375. doi:10.2307/284457. JSTOR 284457. https://doi.org/10.2307%2F284457
Noonan 1986, pp. 125–126. - Noonan, John T. (1986). Contraception: A History of Its Treatment by the Catholic Theologians and Canonists. Harvard University Press.
Treggiari 1981b, p. 69. - Treggiari, Susan (1981b). "Concubinae". Papers of the British School at Rome. 49: 59–81. doi:10.1017/S0068246200008473. https://doi.org/10.1017%2FS0068246200008473
Noonan 1986, p. 125. - Noonan, John T. (1986). Contraception: A History of Its Treatment by the Catholic Theologians and Canonists. Harvard University Press.
Treggiari 1981b, pp. 68–69, citing Confessions 4.2 and 6.12–15. - Treggiari, Susan (1981b). "Concubinae". Papers of the British School at Rome. 49: 59–81. doi:10.1017/S0068246200008473. https://doi.org/10.1017%2FS0068246200008473
Judith Evans-Grubbs, "Late Roman Marriage and Family Relationships," in A Companion to Late Antiquity (Blackwell, 2012), pp. 215–216, citing Augustine, De bono coniugali ("A Good Marriage") 5.
McGinn 1991, p. 337 n. 11. - McGinn, Thomas A. J. (1991). "Concubinage and the Lex Iulia on Adultery". Transactions of the American Philological Association. 121: 335–375. doi:10.2307/284457. JSTOR 284457. https://doi.org/10.2307%2F284457
McGinn 1991, p. 337 n. 11, citing Suetonius, Vespasianus 3.21, Domitianus 12.3; Cassius Dio 6514.1–5; CIL VI 12037. - McGinn, Thomas A. J. (1991). "Concubinage and the Lex Iulia on Adultery". Transactions of the American Philological Association. 121: 335–375. doi:10.2307/284457. JSTOR 284457. https://doi.org/10.2307%2F284457
Sandon & Scalso 2020, p. 153 n. 9. - Sandon, Tatjana; Scalso, Luca (2020). "More Than Mistresses, Less Than Wives: The Role of Roman Concubinae in Light of Their Funerary Monuments". Papers of the British School at Rome. 88: 151–184. doi:10.1017/S0068246220000057. https://doi.org/10.1017%2FS0068246220000057
McGinn 1991, p. 337 n. 11, citing Historia Augusta, "Pius" 8.9; CIL VI 8972. - McGinn, Thomas A. J. (1991). "Concubinage and the Lex Iulia on Adultery". Transactions of the American Philological Association. 121: 335–375. doi:10.2307/284457. JSTOR 284457. https://doi.org/10.2307%2F284457
McGinn 1991, p. 337 n. 11, citing Historia Augusta, "Marcus" 29.19. - McGinn, Thomas A. J. (1991). "Concubinage and the Lex Iulia on Adultery". Transactions of the American Philological Association. 121: 335–375. doi:10.2307/284457. JSTOR 284457. https://doi.org/10.2307%2F284457
McGinn 1991, p. 337 n. 11. - McGinn, Thomas A. J. (1991). "Concubinage and the Lex Iulia on Adultery". Transactions of the American Philological Association. 121: 335–375. doi:10.2307/284457. JSTOR 284457. https://doi.org/10.2307%2F284457
Annelise Freisenbruch, Caesars' Wives: Sex, Power, and Politics in the Roman Empire (Simon & Schuster, 2010), p. 142, of Vepasian and Caenis. /wiki/Caenis
Katharine P. D. Huemoeller, "Freedom in Marriage? Manumission for Marriage in the Roman World," Journal of Roman Studies 110 (2020), p. 134, comparing concubinage to the situation of a freedwoman whose manumission had been conditional on marrying her former master.
Sandon & Scalso 2020, p. 154. - Sandon, Tatjana; Scalso, Luca (2020). "More Than Mistresses, Less Than Wives: The Role of Roman Concubinae in Light of Their Funerary Monuments". Papers of the British School at Rome. 88: 151–184. doi:10.1017/S0068246220000057. https://doi.org/10.1017%2FS0068246220000057
Treggiari 1981b, p. 68. - Treggiari, Susan (1981b). "Concubinae". Papers of the British School at Rome. 49: 59–81. doi:10.1017/S0068246200008473. https://doi.org/10.1017%2FS0068246200008473
Treggiari 1981b, p. 68. - Treggiari, Susan (1981b). "Concubinae". Papers of the British School at Rome. 49: 59–81. doi:10.1017/S0068246200008473. https://doi.org/10.1017%2FS0068246200008473
Sandon & Scalso 2020, pp. 152, 161 (especially n. 36), 177. - Sandon, Tatjana; Scalso, Luca (2020). "More Than Mistresses, Less Than Wives: The Role of Roman Concubinae in Light of Their Funerary Monuments". Papers of the British School at Rome. 88: 151–184. doi:10.1017/S0068246220000057. https://doi.org/10.1017%2FS0068246220000057
Treggiari 1981b, p. 59. - Treggiari, Susan (1981b). "Concubinae". Papers of the British School at Rome. 49: 59–81. doi:10.1017/S0068246200008473. https://doi.org/10.1017%2FS0068246200008473
McGinn 1991, p. 338. - McGinn, Thomas A. J. (1991). "Concubinage and the Lex Iulia on Adultery". Transactions of the American Philological Association. 121: 335–375. doi:10.2307/284457. JSTOR 284457. https://doi.org/10.2307%2F284457
Treggiari 1981b, p. 68, citing CIL V 937. - Treggiari, Susan (1981b). "Concubinae". Papers of the British School at Rome. 49: 59–81. doi:10.1017/S0068246200008473. https://doi.org/10.1017%2FS0068246200008473
Kiefer 2012, p. 50. - Kiefer, O. (12 November 2012). Sexual Life In Ancient Rome. Routledge. ISBN 978-1-136-18198-6. https://books.google.com/books?id=XXksBgAAQBAJ
Sandon & Scalso 2020, p. 153. - Sandon, Tatjana; Scalso, Luca (2020). "More Than Mistresses, Less Than Wives: The Role of Roman Concubinae in Light of Their Funerary Monuments". Papers of the British School at Rome. 88: 151–184. doi:10.1017/S0068246220000057. https://doi.org/10.1017%2FS0068246220000057
Sandon & Scalso 2020, pp. 179–180 et passim. - Sandon, Tatjana; Scalso, Luca (2020). "More Than Mistresses, Less Than Wives: The Role of Roman Concubinae in Light of Their Funerary Monuments". Papers of the British School at Rome. 88: 151–184. doi:10.1017/S0068246220000057. https://doi.org/10.1017%2FS0068246220000057
Treggiari 1981b, pp. 69–70, citing CIL VI 1906. - Treggiari, Susan (1981b). "Concubinae". Papers of the British School at Rome. 49: 59–81. doi:10.1017/S0068246200008473. https://doi.org/10.1017%2FS0068246200008473
One of the peculiarities of Roman marriage was that spouses could not give each other gifts, so that the finances of upper-class or property-owning couples could be kept separate.[75]
Treggiari 1991, p. 52. - Treggiari, Susan (1991). Roman Marriage: "Iusti Coniuges" from the Time of Cicero to the Time of Ulpian. Oxford University Press.
Treggiari 1991, p. 56. - Treggiari, Susan (1991). Roman Marriage: "Iusti Coniuges" from the Time of Cicero to the Time of Ulpian. Oxford University Press.
Treggiari 1991, p. 52. - Treggiari, Susan (1991). Roman Marriage: "Iusti Coniuges" from the Time of Cicero to the Time of Ulpian. Oxford University Press.
Lefkowitz 2005, p. 115. - Lefkowitz, Mary R.; Fant, Maureen B. (2005). Women's Life in Greece and Rome. Baltimore: JHUP. ISBN 0-8018-4474-6.
Lefkowitz 2005, p. 110. - Lefkowitz, Mary R.; Fant, Maureen B. (2005). Women's Life in Greece and Rome. Baltimore: JHUP. ISBN 0-8018-4474-6.
Rawson 1974, p. 282. - Rawson, Beryl (1974). "Roman Concubinage and Other De Facto Marriages". Transactions of the American Philological Association. 104. JHUP: 279–305. doi:10.2307/2936094. JSTOR 2936094. https://doi.org/10.2307%2F2936094
McGinn 1991, p. 337 n. 11, citing Historia Augusta, "Pius" 8.9; CIL VI 8972. - McGinn, Thomas A. J. (1991). "Concubinage and the Lex Iulia on Adultery". Transactions of the American Philological Association. 121: 335–375. doi:10.2307/284457. JSTOR 284457. https://doi.org/10.2307%2F284457
Treggiari 1981b, p. 71. - Treggiari, Susan (1981b). "Concubinae". Papers of the British School at Rome. 49: 59–81. doi:10.1017/S0068246200008473. https://doi.org/10.1017%2FS0068246200008473
Finkenauer 2023, pp. 35–37, citing Digest 20.1.6–8. - Finkenauer, Thomas (2023). "Filii Naturales: : Social Fate or Legal Privilege?". The Position of Roman Slaves. De Gruyter: 25–66. doi:10.1515/9783110987195-002. ISBN 978-3-11-098719-5. https://doi.org/10.1515%2F9783110987195-002
Buckland 1908, pp. 401, 609. - Buckland, W. W. (1908). The Roman Law of Slavery: The Condition of the Slave in Private Law from Augustus to Justinian. Cambridge University Press.
Watson 1987, p. 13, citing Codex Justinianus 6.4.4.3. - Watson, Alan (1987). Roman Slave Law. Johns Hopkins University Press.
Treggiari 1981b, p. 59 n. 2. - Treggiari, Susan (1981b). "Concubinae". Papers of the British School at Rome. 49: 59–81. doi:10.1017/S0068246200008473. https://doi.org/10.1017%2FS0068246200008473
Martha Ellen Stortz, "'Where or When Was Your Servant Innocent?': Augustine on Childhood," in The Child in Christian Thought (Eerdmans, 2001), p 81 n. 12.
Gergő Gellérfi, "Nubit amicus: Same-Sex Weddings in Imperial Rome," Graeco-Latina Brunensia 25:1 (2020), pp. 89-100, especially pp. 98–99.
In this instance, the situation of the concubinus mirrors that of the concubina who must be given up when the man contracts a legitimate marriage.
Arthur J. Pomeroy, "Trimalchio as Deliciae," Phoenix 46:1 (1992), p. 48 n. 14.
David Wardle, "Suetonius and Galba’s Taste in Men: A Note," Latomus 74:4 (2015), pp. 1007, 1011.
Ronald Syme, "Princesses and Others in Tacitus," Greece & Rome 28:1 (1981), p. 40, citing Tacitus, Annales 13.21 (Perseus Project Ann.13.21). /wiki/Ronald_Syme
Rawson 1974, p. 283 n. 13. - Rawson, Beryl (1974). "Roman Concubinage and Other De Facto Marriages". Transactions of the American Philological Association. 104. JHUP: 279–305. doi:10.2307/2936094. JSTOR 2936094. https://doi.org/10.2307%2F2936094