Marriage in ancient Rome

• 1. Introduction

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  Marriage in ancient Rome was called conubium, and it shaped nearly every dimension of Roman life, from the inheritance of property to the survival of the state itself. At its core, the institution served as a tool for building alliances between families, not just a bond between two individuals. What drew the Romans to strict marital monogamy while tolerating wide sexual latitude for men? How did a civilization that permitted divorce as far back as 604 BC also make remarriage a legal obligation? And what happens when an emperor stages a public wedding with another man? These are the questions that take us inside one of history's most carefully regulated social institutions.

• 2. The Monogamy Paradox

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  Walter Scheidel, the scholar who has studied this pattern closely, argues that Greco-Roman marital monogamy may have grown from the relative egalitarianism of democratic and republican city-states. In practice, the institution was prescriptively monogamous: under Roman law, a citizen of either sex could hold only one spouse at a time. Divorce and remarriage, however, were permitted, and men of wealth kept secondary sexual partners outside the marriage bond.

  In the early fifth century, Augustine described this arrangement as a "Roman custom." It was a system in which the formal institution of marriage carried one set of rules, while male sexual behavior operated by another. A married man's relations with enslaved persons, prostitutes, or women of low social standing were not defined as adultery under Roman law. Adultery, in the legal sense, only applied when a man's partner was another man's wife or his unmarried daughter.

  Early Christianity eventually took hold of the monogamous marriage ideal and extended it to sexual conduct as well, propagating what had been a Roman legal norm across later Western cultures.

• 3. Myths, Laws, and the Pater Familias

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  Roman marriage had mythical precedents. According to Livy, Romulus and his band of male immigrants approached the neighboring Sabines to request conubium, the legal right to intermarriage. When the Sabines refused, Romulus and his men abducted the Sabine maidens but promised them honorable marriage, with rights to property, citizenship, and children. The episode may preserve a memory of the archaic custom of bride abduction.

  In law, the oldest living male in a household, the pater familias, held absolute authority over his children, a power called patria potestas. He had not only the right but the duty to arrange good matches for them, sometimes securing a betrothal long before the children reached adulthood. A daughter could legitimately refuse a proposed husband if she could demonstrate his bad character. The legal age of consent to marriage was 12 for girls and 14 for boys, and most Roman women married in their early teens to men in their twenties.

  Daughters kept their birth-family name for life. Marcus Tullius Cicero disapproved of his daughter's choice to marry Publius Cornelius Dolabella and, as the source notes, was unable to prevent it. In the early Empire, daughters and sons held nearly identical standing regarding inheritance when a father died without a will.

• 4. Three Kinds of Roman Marriage

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  Early Roman law recognized three distinct forms of marriage. Confarreatio was the oldest and most solemn, reserved exclusively for patricians. The Flamen Dialis and the pontifex maximus presided, ten witnesses were required, and the bride and groom shared a cake of spelt bread, called panis farreus, which gave the rite its name. Coemptio was marriage "by purchase," used by plebeians. The third form, usus, rested on habitual cohabitation; under this arrangement, a woman could avoid falling under her husband's legal control simply by leaving their shared home for three consecutive nights once a year.

  In the earlier Republic, manus marriage was the norm among elite families. A bride passed from the legal hand of her father to the hand of her husband. By the time of Julius Caesar, manus marriage had been largely abandoned. Free marriage replaced it: a wife moved into her husband's home but remained under her father's lawful authority, not her husband's. Her husband had no legal power over her person or her property.

  The law's separation of property was so complete that gifts exchanged between spouses were treated as conditional loans. If a couple divorced or merely lived apart, the original giver could reclaim the gift.

• 5. Dowry and Divorce

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  Dowry, known in Latin as dos, was the payment a wife's family made to the husband, nominally to cover household expenses. Ancient papyrus texts show that dowries typically included land and enslaved people, but also jewelry, toiletries, mirrors, and clothing. The payment was customary rather than legally compelled.

  While the marriage lasted, the husband controlled the dowry but was restricted in how he could use it. If divorce occurred, the dos was returned to either the wife or her family. A husband who caused the divorce through misconduct lost any claim to a share of it. A wife found blameless had the full dowry restored. Three distinct categories of dowry existed: dos profecticia, given by the bride's father or pater familias; dos recepticia, arranged in advance with specific agreements about recovery; and dos adventicia, the most flexible type, which could even be reclaimed by the wife if she initiated the divorce.

  Divorce itself was relatively informal. The wife collected her dowry and left. According to the historian Valerius Maximus, divorces were recorded as early as 604 BC. The early Republican law code of the Twelve Tables provided for divorce. By the time of Cicero and Caesar, it was common enough to be gossip rather than scandal. Valerius records that Lucius Annius was expelled from the Senate by the censors of 307 BC for divorcing his wife without consulting his social circle, violating the norms of amicitia and clientela. Official registration of divorce was not required until 449 AD.

• 6. Augustus Rewrites the Rules

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  Following the collapse of the Republic, marriage rates and birth rates had fallen, particularly among the wealthier classes. Augustus responded with legislation designed to restore the mos maiorum, the traditional social norms, while consolidating his own authority as princeps. His laws required all men between the ages of 25 and 60, and all women between 20 and 50, to marry and produce children or pay additional taxes proportional to their wealth.

  Citizens who had already produced three children were exempt; freed persons needed four. The new rules declared marriages between senators, freed women, enslaved people, and citizens legally void. Children of such unions were illegitimate, non-citizen, and unable to inherit. A married woman who bore three or more children could be granted legal independence under the ius liberorum.

  The Lex Iulia de adulteriis of 18 BC made adultery a criminal matter for the first time. A father who discovered his married daughter committing adultery in his own house or that of his son-in-law was entitled to kill both the woman and her lover; killing only one exposed him to a murder charge. Scholars in the later 20th and early 21st centuries argued that the laws served Augustus as instruments of political control more than genuine moral reform. He used them to banish rivals and enemies. These laws were modified in 9 AD by the Lex Papia Poppaea and were eventually repealed or fell into disuse under Constantine and Justinian.

• 7. Remarriage and Fulvia's Alliances

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  Remarriage among the Roman elite was frequent, sometimes rapid. No formal waiting period existed for widowers. For widows, custom required ten months of mourning before remarrying, a duration long enough to resolve any question of paternity if a woman had been pregnant at the time of her husband's death. Augustus himself married Livia while she was carrying her former husband's child; the College of Pontiffs ruled it permissible provided the child's father was determined first. Livia's previous husband attended the wedding.

  A widow or divorcée with property or political connections faced far fewer obstacles to remarriage than a first-time bride. She was more likely to be legally emancipated and to have meaningful say in choosing her next husband. No figure illustrates this better than Fulvia, who commanded troops during the last civil war of the Republic and was the first Roman woman to have her face on a coin. Her three marriages trace an arc of Roman political history: first to Clodius Pulcher, the popularist champion murdered after a long feud with Cicero; then to Scribonius Curio, who at his death had come over to Julius Caesar; and finally to Mark Antony, the last man to oppose the republican oligarchs before Rome's first emperor consolidated power.

  Children were expected in every marriage, and each spouse in a remarriage typically brought children from a previous union. Ancient physicians believed that women deprived of sexual activity risked serious illness, and Augustan legislation required widows and widowers to remarry in order to inherit from anyone outside their immediate family.

• 8. Same-Sex Unions

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  In the Imperial era, several accounts describe wedding ceremonies between men. Literary sources, including the works of Martial and Juvenal, treated these occasions largely with mockery. A quasi-marital union between two men would not have constituted a valid marriage, a iustum matrimonium, under Roman law.

  Sporus, described in the sources as a young enslaved person, was castrated and publicly treated as Nero's wife; a dowry was given and the ceremony was a public event. Nero may also have had a legitimate husband named Pythagoras, whom Tacitus discusses briefly in the Annals at 15.37. Among the more notable examples is the emperor Elagabalus, who is said by Cassius Dio to have married either an enslaved chariot driver named Hierocles or a Smyrnaean athlete named Zoticus; in those relationships Elagabalus was named wife, mistress, and queen.

  The Codex Theodosianus contains a constitutio issued by Constantine and Constans that refers to a man marrying in the manner of a bride. This legal document makes clear that such ceremonies were occurring with enough regularity to require prohibition, which is itself evidence that same-sex weddings took place within Roman society. Elagabalus's marriages are generally considered unlikely to have been legitimate in the legal sense, yet the cultural history they represent points to a world in which the boundaries of the institution were tested from within the palace itself.