Adoption in ancient Rome
Adoption in ancient Rome was primarily a legal procedure for transferring paternal power. The Latin word adoptio refers broadly to adoption, which was of two kinds. One kind involved the transferral of potestas over a free person from one head of household to another. This process was known as adoptio. The other kind was adrogatio. Adrogatio occurred when the adoptee had been acting sui iuris as a legal adult but assumed the status of unemancipated son for purposes of inheritance. Adoptio was a longstanding part of Roman family law pertaining to paternal responsibilities such as perpetuating the value of the family estate and ancestral rites. These were concerns of the Roman property-owning classes and cultural elite. During the Principate, adoption became a way to ensure imperial succession.
A close relative was preferred as the adoptee in Roman practice. A paterfamilias might adopt a grandson, especially if the grandson's father was not in the line of succession. One common pattern involved a woman's childless brother adopting one of her sons. A brother or cousin on the father's side might relinquish potestas over a son to provide a childless man with an adoptive heir. A pater who had no sons might adopt his daughter's husband to strengthen family lineage. To avoid technical incest, he would first need to emancipate his daughter so that she was no longer legally a part of the family. Adoption of a stepson from the wife's previous marriage was another strategy if the stepson had no children. The adoptee did not have to be a relative. Romans placed a high value on the social bonds of friendship. A childless man might adopt a friend or friend's son.
In the late Republican era, Publius Clodius Pulcher famously subverted the usual course of adopting up. He surrendered his patrician status and became a nominal plebeian in order to qualify for the office of tribune. Cicero criticized the adrogatio of Clodius as solely politically motivated. Clodius was emancipated immediately after he had achieved his aim. Around the same time, a nominal adoption allowed Publius Cornelius Lentulus Spinther to take a place in the College of Augurs. This move got around the rule against having two members from the same gens. The adoption seems to have been entirely fictional since there is no evidence he ever made any use of the nomenclature of the Manlius Toquatus who adopted him. Augustan legislation that granted privileges to fathers with multiple children prompted adoptions of convenience. By the time of Nero, a senatorial decree had tried to block legal dodges. The historian Tacitus indicates that fictitious or fake adoption could be detected by rapid emancipation once the benefit was realized.
Many Roman emperors came to power through adoption either because their predecessors had no natural sons or simply to ensure a smooth transition for the most capable candidate. Augustus was adopted into the gens Julia in the will of his great uncle Julius Caesar. He inherited Caesar's money, name, and auctoritas. As Augustus's central role in the Principate solidified, it became increasingly important for him to designate an heir. He first adopted his daughter Julia's three sons by Marcus Agrippa. After the former two died young and the latter was exiled, Augustus adopted his stepson Tiberius Claudius Nero on the condition that he adopt his own nephew Germanicus. Tiberius succeeded Augustus, and after Tiberius's death, Germanicus's son Caligula became emperor. Claudius adopted his stepson Lucius Domitius Ahenobarbus who changed his name to Nero Claudius Caesar and succeeded Claudius as the emperor Nero. The Nerva-Antonine dynasty was also united by a series of adoptions. Nerva adopted the popular military leader Trajan. Trajan in turn took Publius Aelius Hadrianus as his protégé.
Roman women could own inherit and control property as citizens. They played an increasingly significant role in succession and the inheritance of property from the 2nd century BC through the 2nd century AD. As an instrument for transferring paternal potestas adoption was mainly a male-gendered practice. Testamentary adoption became more common during the late Republic. Octavian the future Augustus was adopted in this way by his maternal great-uncle Julius Caesar. Although adoptio was a practice aimed at furthering the succession of male privileges both men and women could in effect adopt by passing along their property in a will with the condition that the heir carry on the family name. The role of women in passing property along the family line became increasingly important. From the late Republic through the Principate most Roman women married sine manu meaning that they remained part of their birth family and did not submit to their husband's potestas. Livia the wife of Augustus outlived him and only upon his death did testamentary adoption make her a part of the Julian family. Adrogation of female adoptees became possible through imperial rescript in the Antonine era between AD 138 and 192. Under exceptional circumstances a woman could adopt in the same way.
Common questions
What was the primary legal purpose of adoption in ancient Rome?
Adoption in ancient Rome was primarily a legal procedure for transferring paternal power from one head of household to another. This process served financial, social, and political purposes among property-owning classes to perpetuate family estates and ancestral rites.
How did adrogatio differ from adoptio in Roman law?
Adoptio involved the transferal of potestas over a free person from one head of household to another while adrogatio occurred when an adult acting sui iuris assumed the status of an unemancipated son for inheritance purposes. Adrogation of female adoptees became possible through imperial rescript in the Antonine era between AD 138 and 192.
Why did Publius Clodius Pulcher subvert the usual course of adopting up?
Publius Clodius Pulcher surrendered his patrician status and became a nominal plebeian in order to qualify for the office of tribune during the late Republican era. Cicero criticized this adrogatio as solely politically motivated since Clodius was emancipated immediately after he had achieved his aim.
Which Roman emperors came to power through adoption instead of natural succession?
Augustus was adopted into the gens Julia in the will of his great uncle Julius Caesar on the 2nd of May 44 BC. Tiberius succeeded Augustus, Caligula followed Tiberius, and Nero Claudius Caesar succeeded Claudius as emperor Nero within the Nerva-Antonine dynasty united by a series of adoptions.
How did women participate in Roman testamentary adoption practices from the 2nd century BC to the 2nd century AD?
Roman women could own inherit and control property as citizens while playing an increasingly significant role in succession and inheritance from the 2nd century BC through the 2nd century AD. Testamentary adoption allowed women like Livia to become part of the Julian family upon her husband's death when she outlived him.