Agrippina the Younger
Agrippina the Younger died on the 23rd of March AD 59 with a command that has echoed across two millennia: "Stab my belly." Those were, by one ancient account, her final words as assassins surrounded her in her bedroom. She was pointing at her own womb. The womb that had carried Nero. The son who had just ordered her killed.
She was born Julia Agrippina on the 6th of November AD 15 at a Roman outpost on the Rhine. She died at the age of 43, not in battle or from illness, but on her own son's instructions, after surviving a rigged boat designed to sink beneath her, a collapsing lead ceiling, and at least three poisoning attempts. Between her birth and that final night, she became Roman empress, forced the Senate to rewrite marriage law, founded a city, and placed her own face on the official coinage of the empire while still alive.
What made a woman born into one of the most dangerous families in Roman history survive as long as she did? What allowed her to maneuver a son onto the throne of the world's greatest empire? And what finally made her untouchable status crumble? The answers lie in a life that was never, for a single day, free of mortal risk.
Germanicus, Agrippina's father, was the most celebrated Roman general of his generation and was widely expected to succeed the emperor Tiberius. He died suddenly in Antioch in October of AD 19 when his daughter was four years old. The official cause was illness. The real suspicion fell on Gnaeus Calpurnius Piso, the governor of Syria, and his wife, who were widely believed to have poisoned him. Germanicus's death left Agrippina as the daughter of a martyr.
Her mother, Agrippina the Elder, was the granddaughter of the emperor Augustus and was remembered as a "modest and heroic matron." She fought publicly and bitterly against the Praetorian Prefect Lucius Aelius Sejanus, who eventually destroyed her and two of her sons, Nero Caesar and Drusus Caesar. Of the children, only the future emperor Caligula and the two youngest sisters survived.
After her father's death, Agrippina was raised on the Palatine Hill in Rome under the watch of her paternal grandmother Antonia Minor, and her great-grandmother Livia. Two older brothers dead at Sejanus's instigation. A mother exiled and broken. A family under siege from within the very government it had produced. This was the household in which Agrippina learned what power looked like and what happened when you lost it.
Tiberius arranged Agrippina's first marriage, to her paternal first cousin once removed Gnaeus Domitius Ahenobarbus, just after her thirteenth birthday in AD 28. Suetonius described Domitius as "in every aspect of his life detestable." He served as consul in AD 32, but almost nothing is known about how the two of them got on. What is known is that on the 15th of December AD 37, in the early morning hours at Antium, Agrippina gave birth to a son named Lucius Domitius Ahenobarbus. The boy who would become Nero.
When her brother Caligula became emperor in AD 37 after Tiberius died, Agrippina and her surviving sisters received significant public honors: the rights of the Vestal Virgins, their images on a new type of coinage, and their names inserted into public loyalty oaths. Then everything collapsed. In AD 39, Agrippina, her sister Livilla, and their cousin Marcus Aemilius Lepidus were accused of a plot to murder Caligula known as the Plot of the Three Daggers. Caligula produced handwritten letters at Lepidus's trial, letters allegedly discussing how they planned to kill him. Lepidus was executed. Agrippina was forced to carry his ashes back to Rome.
Caligula then exiled both sisters to the Ponza, a group of volcanic islands roughly 70 miles from Rome. He sold their furniture, jewellery, slaves, and freedmen. In January of AD 40, Domitius died of edema at Pyrgi while Agrippina was on the island. Her son Lucius went to live with his paternal aunt Domitia Lepida the Younger after Caligula confiscated the boy's inheritance. Agrippina returned from exile only when Caligula was murdered on the 24th of January AD 41.
Back in Rome, Agrippina married a second time, to the wealthy and twice-consul Gaius Sallustius Crispus Passienus, who was the adopted grandson and biological great-great-nephew of the historian Sallust. Crispus died in AD 47 and left his entire estate to Nero. A rumor immediately spread that Agrippina had poisoned him.
By AD 48, Claudius's wife Valeria Messalina had been executed for conspiring to overthrow her husband. Claudius began considering a fourth marriage. His advisers discussed candidates, and the Senate itself may have pushed for Agrippina because a union between her Julian lineage and Claudius's Claudian branch could end a long-running dynastic feud. There was also a practical calculation: her son Lucius, as a descendant of both Augustus and Germanicus, would give Claudius's regime a stronger hereditary claim.
The problem was Roman law. An uncle marrying his niece was considered incestuous and immoral. Claudius persuaded a group of senators that the marriage served the public interest, and the law was changed. They married on New Year's Day in AD 49. Agrippina wasted no time. She eliminated her rival Lollia Paulina, who had been another candidate for Claudius's hand, by persuading Claudius to charge Paulina with use of black magic. Paulina was stripped of her property and driven from Italy. When Agrippina remained unsatisfied, a tribune was allegedly sent to force Paulina to take her own life.
In AD 50, Claudius founded a Roman colony on the Rhine and named it Colonia Claudia Ara Agrippinensium, today's Cologne, after Agrippina herself. It was the only Roman colony ever named after a Roman woman. That same year, Claudius adopted her son Lucius, renamed him Nero Claudius Caesar Drusus Germanicus, and designated him as heir. Agrippina also secured the appointment of Sextus Afranius Burrus as head of the Praetorian Guard. She was now building a loyal network inside every power structure in Rome.
In AD 50, Agrippina was granted the honorific title of Augusta. She was the third Roman woman in history to receive it, and only the second who was still living at the time. Her face appeared on official Roman coins without ambiguity, something no living empress had accomplished before her. Statues of her went up across the empire. Her followers were given senatorial offices and governorships.
Pliny the Elder recorded seeing Agrippina seated beside Claudius during mock naval battles, wearing a golden cloak. Cassius Dio observed that she sat on her own platform when Claudius received foreign ambassadors or transacted government business. Tacitus wrote that she boasted of being a "partner in the empire." In AD 51, she was given a carpentum, a ceremonial carriage normally reserved for priests and sacred statues. That same year, when the captured Celtic King Caratacus was paraded as a prisoner, he bowed to Agrippina with the same homage he gave the emperor.
Behind the visible power was a calculated architecture of allies. Her network included Pallas, Claudius's chief secretary; Xenophon, the imperial doctor; and Burrus at the head of the Praetorian Guard. No ancient or modern historian has seriously doubted that from the moment she married Claudius, her goal was to place Nero on the throne. In AD 51, she ordered the execution of Britannicus's tutor Sosibius, who had openly confronted her over Claudius's decision to adopt Nero instead of his own biological son. Nero and Claudius's daughter Octavia were married on the 9th of June AD 53.
Claudius died on the 13th of October AD 54. Ancient sources describe a plate of poisoned mushrooms at a banquet. Modern analysis notes he was 63 and in poor health. Whatever the cause, Agrippina moved immediately: she sealed the palace, blocked the city gates, kept the death secret long enough to organize the handover, and then introduced Nero first to the soldiers and afterward to the Senate as the new emperor.
Nero began his reign with his mother as a force behind every decision. She attended Senate meetings from behind a curtain. She appeared alongside him on official coinage and in statues. When she tried to receive the loyalty pledge of the Praetorian Guard herself, Seneca and Burrus had to intervene to stop her.
The first fracture came in the very first year of Nero's reign when he began an affair with a freed woman named Claudia Acte. Agrippina disapproved violently and made her feelings known. Nero's response was to begin quietly stripping away her advantages. He had Britannicus poisoned at a banquet in February AD 55, removing the leverage Agrippina had tried to use against him. Pallas was dismissed from court. By mid AD 56, Agrippina had been forced out of everyday governance. Nero sent people to her residence to pester her with lawsuits and public jeering. He removed her Roman and German bodyguards. He even threatened to abdicate and retire to the Greek island of Rhodes, the same place Tiberius had retreated to decades earlier after divorcing Julia the Elder.
In late AD 58, Agrippina and a group of senators and soldiers were accused of plotting to overthrow Nero and replace him with Gaius Rubellius Plautus, her son's maternal second cousin. She had also, reportedly, revealed Nero's relationship with the noblewoman Poppaea Sabina to cause him political damage. Whether she was genuinely plotting or simply being framed, the accusations gave Nero a pretext. According to Tacitus, Poppaea pressed the point by mocking Nero as a "mummy's boy" who could never rule freely while his mother lived.
Years earlier, before Nero's birth, Agrippina had consulted astrologers about her son's future. They told her he would become emperor and would kill her. Her reply, recorded by Tacitus, was: "Let him kill me, provided he becomes emperor."
Nero sent his mother a friendly letter inviting her to join him at Baiae to celebrate the Quinquatrus festival. According to Suetonius, he had already tried to poison her three times. She had taken antidotes in advance each time. He had also rigged a device in her bedroom ceiling to drop tiles onto her while she slept; she escaped after word of the plan reached her.
The plan at Baiae involved a boat rigged to sink. The accounts of Tacitus, Suetonius, and Cassius Dio differ on the precise mechanism, but all agree on the outcome: the boat failed to kill Agrippina. In Tacitus's version, a collapsing lead ceiling crushed her attendant near the helm while Agrippina was saved by a couch breaking the ceiling's fall. The boat's crew then deliberately sank the vessel, but she swam to shore. Her friend Acerronia Polla was beaten to death in the water by oarsmen who mistook her for Agrippina after she cried out that she was the empress hoping to be rescued.
Agrippina reached shore and sent Nero a letter informing him she had survived. Nero, panicking, ordered a guard to drop a blade near the messenger and had him arrested on a charge of attempted murder, framing it as Agrippina's assassination attempt against Nero. He then sent Anicetus, the trierarch Herculeius, and the marine centurion Obaritus to finish the task. They surrounded her villa, entered her bedroom, and killed her. Cassius Dio records her final words, addressed to the assassin who raised the blow: "Strike here, Anicetus, strike here, for this bore Nero."
The next day, Nero inspected the body. He told the Senate she had plotted against him and taken her own life. The Roman army, the Senate, and various officials sent letters of congratulation. Agrippina's grave, in Misenum, went uncovered and unenclosed for the rest of Nero's reign. Her household eventually gave her a modest tomb.
Agrippina wrote her own memoirs, a full account of her life and the misfortunes of her family. Tacitus explicitly cites them in his Annals, specifically in book 4, section 53, as a primary source for the life and death of Germanicus. Scholars have pointed to the existence of those memoirs as evidence that Agrippina understood, with unusual clarity for a Roman woman of her era, that history needed to be shaped as well as made. The memoirs have not survived.
The loss is significant. Almost everything recorded about Agrippina comes from male writers, most of whom were hostile. Tacitus found her vicious. The sources describe her as ruthless, ambitious, and domineering, terms that in the same era would have been compliments applied to men of similar drive. What the memoirs might have said about the deaths of Caligula's court, the poisoning of Claudius, or the internal workings of the imperial household will never be known.
Pliny the Elder noted one physical detail about her: she had a double canine tooth in her upper right jaw, which in ancient Rome was regarded as a sign of good fortune. It is a small, specific, odd detail, the kind that survives because someone wrote it down. Cologne, the city Claudius named in her honor, still marks her as its symbolic founder. Giovanni Boccaccio included her in De Mulieribus Claris, his collection of biographies of notable women written in 1361-62, the first collection in Western literature devoted exclusively to female biography. G.F. Handel set her story as an opera in 1709, with a libretto by Vincenzo Grimani. She has been played on screen by Ava Gardner, Kim Cattrall, and Gloria Swanson, among others. The woman who told the astrologers to let her son kill her, as long as he became emperor, never stopped being a subject worth arguing about.
Common questions
Who was Agrippina the Younger and why is she significant in Roman history?
Agrippina the Younger, born Julia Agrippina on the 6th of November AD 15, was Roman empress from AD 49 to 54 and mother of the emperor Nero. She was the great-granddaughter of Augustus, the only living empress to appear unambiguously on official Roman coinage, and the woman after whom the city of Cologne was named, making her one of the most powerful women in the Julio-Claudian dynasty.
How did Agrippina the Younger become Roman empress?
Agrippina married her uncle, the emperor Claudius, on New Year's Day in AD 49 after Roman law was changed to permit a union that had previously been considered incestuous. She was granted the honorific title of Augusta in AD 50 and quickly built a network of loyal allies within the imperial administration, including the head of the Praetorian Guard.
How did Agrippina the Younger die?
Agrippina died on the 23rd of March AD 59, murdered on the orders of her son Nero. After surviving a rigged boat designed to sink beneath her, she was killed by men Nero sent to her villa, including the freedman Anicetus, the trierarch Herculeius, and the marine centurion Obaritus. Nero told the Senate she had plotted against him and died by suicide.
Did Agrippina the Younger poison the emperor Claudius?
Ancient sources including Tacitus, Suetonius, and Cassius Dio claim Agrippina poisoned Claudius on the 13th of October AD 54 with a plate of deadly mushrooms at a banquet. Modern historians note it is also possible that Claudius died of natural causes, as he was 63 years old and in poor health.
What city did Agrippina the Younger found or inspire?
Claudius founded a Roman colony on the Rhine in AD 50 and named it Colonia Claudia Ara Agrippinensium in Agrippina's honor, the city known today as Cologne, Germany. It was the only Roman colony ever named after a Roman woman. Agrippina was born near that location at a Roman outpost on the Rhine.
Did Agrippina the Younger write a memoir?
Agrippina did write memoirs covering her life and her family's misfortunes. Tacitus explicitly cites them in Annals 4.53 as a primary source for information about her father Germanicus. The memoirs have not survived, leaving a significant gap in the historical record from a female perspective on the Julio-Claudian court.
All sources
21 references cited across the entry
- 1BookThe Life and Times of NeroCarlo Maria Franzero — Merritt & Hatcher — 1956
- 2BookCaligula: The Mad Emperor of RomeStephen Dando-Collins — Turner Publishing Company — 2019
- 3BookAgrippina: Mother of NeroAnthony A. Barrett — Routledge — 2002
- 4JournalThe Death of Germanicus: Disease or Murder?Giovanni Meledandri
- 7JournalAgrippina the YoungerGiacomo Presciuttini — 2021-04-01
- 10BookCaligula: A BiographyAloys Winterling — University of California Press — 2011
- 12BookRoman Women: The Women who influenced the History of RomePaul Chrystal — Fonthill Media — 2017
- 13BookThe Works of Tacitus: The annals, Volume ICornelius Tacitus — Harper & Brothers — 1865
- 14BookAgrippina: Mother of NeroAnthony Barrett — Routledge — 2002
- 16BookAgrippina: Sex, Power and Politics in the Early EmpireAnthony Barrett — Yale University Press — 1999
- 17BookAd Britannia II: First Century Roman BritanniaColonel Donald A. Wallbrecht — Trafford Publishing — 2017
- 18BookThe Oxford Classical DictionaryJohn Balsdon — Oxford University Press — 1996
- 19JournalLost Memoirs of AntiquityJames Westfall Thompson — The Johns Hopkins University Press — 1919
- 20BookAgrippina: Sex, Power, and Politics in the Early EmpireAnthony Barrett — Yale University Press — 1999
- 21Boccaccio (2003) p. xiBoccaccio — 2003