← Section IV (Historical Periods): The Augustan Age 44 BC to AD 14
What were Augustus's social and moral reforms?
Augustus's social and moral legislation, including the Leges Juliae of 18 BC, the Lex Papia Poppaea of AD 9, the marriage and adultery laws, the slavery laws, and the question of their effectiveness
A focused answer to the HSC Ancient History dot point on Augustus's social legislation. The Leges Juliae of 18 BC on marriage and adultery, the Lex Papia Poppaea of AD 9, the slavery laws, the exile of Julia and Ovid, and the verdicts of Galinsky and Cohen on the effectiveness of the reforms.
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What this dot point is asking
NESA expects you to describe Augustus's social and moral legislation in detail, the marriage laws of 18 BC and AD 9, the slavery laws, the exile of Julia, and the question of whether the laws were effective. Strong responses integrate the laws with the wider propaganda program and engage with the debate over effectiveness.
The answer
The Leges Juliae (18 BC)
In 18 BC, Augustus introduced a major package of social legislation under his tribunicia potestas. Two laws addressed marriage and adultery.
Lex Julia de adulteriis coercendis. This was the first time adultery had been criminalised as a public offence at Rome. Previously it had been a matter for the family (paterfamilias and household). The law required husbands to prosecute or divorce adulterous wives; a husband who failed to do so could be prosecuted himself for lenocinium (procuring). Adulterers (both the wife and her partner) faced exile, loss of property, and disgrace.
The law also targeted stuprum (illicit sex with unmarried women of citizen status).
Lex Julia de maritandis ordinibus. Required marriage and reproduction within the senatorial and equestrian orders. Men aged 25 to 60 and women aged 20 to 50 who remained unmarried, or married but childless, faced restrictions on inheritance: the unmarried could inherit only from close relatives; the childless could inherit only half from non-relatives. The penalties were strong economic incentives.
The law also restricted intermarriage between senators and freed slaves.
The Lex Papia Poppaea (AD 9)
Augustus introduced a strengthened version in AD 9, named for the consuls of that year, Marcus Papius Mutilus and Quintus Poppaeus Secundus (who, ironically, were themselves childless and unmarried).
The new law confirmed and tightened the penalties of 18 BC. The ius trium liberorum ("right of three children") gave parents with three or more children priority in office-holding and exemption from certain civic burdens. The law became the standard social regulation for the Roman elite for centuries.
The slavery laws
Augustus restricted the freeing of slaves (manumission) to prevent indiscriminate enfranchisement.
Lex Fufia Caninia (2 BC). Limited the number of slaves a master could free by testament: a fixed proportion depending on total slave-holdings.
Lex Aelia Sentia (AD 4). Established minimum ages for manumission (master 20, slave 30). Slaves freed informally or by masters who did not follow procedures became Junian Latins, with limited citizenship rights. Criminal slaves became dediticii (with no citizenship).
These laws shaped Roman citizenship for centuries.
The goals
Augustus's stated goals included:
- Reviving the moral foundations of the senatorial class (the propaganda of restoration)
- Increasing the citizen birth rate, especially among the elite (a perceived demographic crisis)
- Reversing the alleged moral decay of the late Republic
- Aligning law with the religious revival and the Augustan moral program
The Carmen Saeculare commissioned from Horace for the Secular Games of 17 BC celebrated the new marriage laws explicitly.
Effectiveness: the scandal of Julia
The greatest test of the laws was within Augustus's own household.
Julia the Elder. Augustus's only biological daughter (by his first wife Scribonia). Married three times for dynastic reasons: to Marcellus (Augustus's nephew, who died young), to Agrippa (Augustus's right-hand man, who died in 12 BC), and finally to Tiberius (Augustus's stepson, an unhappy marriage). She had five children by Agrippa (Gaius and Lucius Caesar, Julia the Younger, Agrippina the Elder, Agrippa Postumus).
In 2 BC Julia was charged with adultery under her father's own laws. Several lovers were named, including Iullus Antonius (son of Mark Antony), who was forced to commit suicide. Julia was exiled to the island of Pandateria; her mother Scribonia accompanied her. Julia was later moved to Rhegium on the mainland and died in AD 14, in poverty.
Julia the Younger. Augustus's granddaughter. Exiled in AD 8 for adultery with Decimus Junius Silanus. She died in exile.
Ovid. Exiled in AD 8 to Tomis on the Black Sea, allegedly for a poem (carmen) and a mistake (error). Ovid's exile is widely believed to have been connected to the Julia the Younger scandal, though the precise nature of his offence is unknown. Ovid's Tristia, written in exile, lament the punishment.
The exile of Augustus's own daughter and granddaughter under his own laws demonstrated either the seriousness of his enforcement or the failure of his legislation to deliver moral reform in the imperial household. Both interpretations are available.
Effectiveness: demographic outcomes
The demographic effects of the laws are difficult to measure. The senatorial class continued to shrink across the early empire. The birth rate did not visibly recover. The laws were widely evaded through legal manoeuvres (the ius trium liberorum was granted by special favour to childless figures; manumission of slaves continued to be a path to citizenship).
David Cohen (1991) and other historians have argued the laws were practically ineffective as demographic engineering.
Effectiveness: ideological success
The laws articulated the moral framework of the principate. Subsequent emperors maintained and modified the system. The "marriage laws" became part of the Augustan legacy and shaped Roman family law for centuries.
Karl Galinsky (Augustan Culture, 1996) emphasises the integration of the laws with the wider Augustan program of restoration: the moral revival, the religious revival, the visual program of the new Rome.
Augustus's social legislation at a glance
| Law | Date | Content |
|---|---|---|
| Lex Julia de adulteriis | 18 BC | Adultery criminalised |
| Lex Julia de maritandis ordinibus | 18 BC | Marriage required; inheritance penalties |
| Lex Fufia Caninia | 2 BC | Manumission limits by will |
| Lex Aelia Sentia | AD 4 | Manumission age minimums |
| Lex Papia Poppaea | AD 9 | Strengthened marriage laws; ius trium liberorum |
| Julia the Elder exiled | 2 BC | Adultery; Pandateria |
| Julia the Younger exiled | AD 8 | Adultery |
| Ovid exiled | AD 8 | "Carmen et error"; Tomis |
Historiography
Karl Galinsky (Augustan Culture, 1996) treats the laws as part of an integrated moral and political program.
David Cohen ("The Augustan Law on Adultery," 1991) emphasises the practical limits.
Susan Treggiari (Roman Marriage, 1991) is the canonical study of Roman marriage law including the Augustan reforms.
How to read a source on this topic
Section IV sources on the social legislation typically include extracts from the laws (preserved in the Digest), Augustus's Res Gestae, Suetonius (Divus Augustus 34, on the laws), Tacitus (Annals 3.25-28, the laws and Ovid's exile), or Horace's Carmen Saeculare. Three reading habits.
First, distinguish law from practice. The laws were stringent; enforcement was uneven; evasion was common. Use the legal texts as evidence of ideology, not necessarily of outcomes.
Second, integrate with the wider propaganda. The marriage laws are part of the same program as the Ara Pacis and the religious revival. Strong responses make this connection.
Third, treat Julia's exile as a test case. The exile of Augustus's own daughter is the most-cited example of either rigour or hypocrisy depending on the interpretive frame.
Common exam traps
Treating the laws as wholly ineffective. Galinsky argues for ideological success even if demographic failure.
Confusing the two Julias. Julia the Elder (Augustus's daughter, exiled 2 BC) and Julia the Younger (his granddaughter, exiled AD 8).
Missing the Ovid connection. Ovid's exile in AD 8 is typically tied to the Julia the Younger scandal.
Forgetting the slavery laws. Lex Fufia Caninia and Lex Aelia Sentia shaped citizenship and are routinely tested.
In one sentence
Augustus's social and moral legislation - the Lex Julia de adulteriis and Lex Julia de maritandis ordinibus of 18 BC, the slavery laws (Lex Fufia Caninia of 2 BC and Lex Aelia Sentia of AD 4), and the strengthened Lex Papia Poppaea of AD 9 with its ius trium liberorum - articulated the moral framework of the principate and integrated with the religious revival and propaganda, but the demographic effects were limited and the exile of Augustus's own daughter Julia in 2 BC and his granddaughter and Ovid in AD 8 demonstrated, depending on interpretation, either the rigour of his enforcement (Galinsky) or the gap between the laws and family reality (Cohen).
Past exam questions, worked
Real questions from past NESA papers on this dot point, with our answer explainer.
Practice (NESA)10 marksEvaluate the effectiveness of Augustus's social and moral legislation.Show worked answer →
A 10-mark evaluate needs the laws, goals, limits, and a judgement.
Thesis. Augustus's social legislation was ideologically significant but practically limited. The laws articulated the moral framework of the regime but produced little measurable demographic change. The exile of Julia in 2 BC demonstrated the gap between law and practice within Augustus's own household.
Leges Juliae (18 BC). Lex Julia de adulteriis coercendis criminalised adultery for the first time. Husbands had to divorce adulterous wives or face prosecution. Adulterers were exiled with property loss. Lex Julia de maritandis ordinibus required marriage and reproduction: senators and equestrians faced inheritance penalties for remaining unmarried or childless.
Lex Papia Poppaea (AD 9). Strengthened the marriage laws. The ius trium liberorum ("right of three children") gave priority in office-holding.
Slavery laws. Lex Fufia Caninia (2 BC) and Lex Aelia Sentia (AD 4) restricted manumission and shaped Roman citizenship.
Goals. Revive senatorial moral foundations; increase elite birth rate; reverse perceived moral decay; align law with restoration propaganda.
Failure in Augustus's household. Julia the Elder exiled 2 BC for adultery under her father's own laws. Julia the Younger exiled AD 8. Ovid exiled AD 8 ("carmen et error") in connected scandal.
Demographic effect. Limited. Senatorial class continued to shrink. Penalties were evaded.
Ideological success. Laws articulated the moral framework of the principate. Subsequent emperors continued the system.
Historian. Galinsky (Augustan Culture, 1996): integrated moral-political program. Cohen (1991): practical limits, gap between ideology and demographic outcome.
Conclusion. Ideologically central but practically limited.
Markers reward laws, goals, limits, historians, and a judgement.
Practice (NESA)4 marksOutline the main provisions of Augustus's marriage laws.Show worked answer →
A 4-mark "outline" needs the main laws and their content.
Lex Julia de adulteriis coercendis (18 BC). Criminalised adultery for the first time. Husbands were required to divorce adulterous wives or face prosecution. Adulterers faced exile and property loss.
Lex Julia de maritandis ordinibus (18 BC). Required marriage and reproduction. Senators and equestrians of marriageable age faced penalties for remaining unmarried or childless. Restricted inheritance rights for the unmarried and childless.
Lex Papia Poppaea (AD 9). Modified and strengthened the marriage laws. The ius trium liberorum (right of three children) gave parents priority in office and inheritance. Penalties intensified.
Goals. To revive the moral foundations of the senatorial class, increase the citizen birth rate, and reverse the perceived moral decay of the late Republic.
Markers reward the named laws, their content, and the goals.
Related dot points
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A focused answer to the HSC Ancient History dot point on the Augustan Settlement. The First Settlement of 27 BC (the title Augustus, the provincia), the Second Settlement of 23 BC (tribunicia potestas, maius imperium proconsulare), and the political theory of the disguised monarchy, with the verdicts of Syme, Eck, and Goldsworthy.
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- The succession problem under Augustus, including the candidates (Marcellus, Agrippa, Gaius and Lucius Caesar, Tiberius, Agrippa Postumus), the role of Livia, and the death of Augustus in AD 14
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