Nero Claudius Caesar Augustus Germanicus (15 December AD 37 – 9 June AD 68), born Lucius Domitius Ahenobarbus, also called Nero Claudius Caesar Drusus Germanicus, was the fifth and last Roman emperor of the Julio-Claudian dynasty. Nero was adopted by his great uncle Claudius to become heir to the throne. As Nero Claudius Caesar Augustus Germanicus, he succeeded to the throne on 13 October 54, following Claudius's death.

Nero ruled from 54 to 68, focusing much of his attention on diplomacy, trade, and increasing the cultural capital of the empire. He ordered the building of theaters and promoted athletic games. His reign included a successful war and negotiated peace with the Parthian Empire (58–63), the suppression of the British revolt (60–61) and improving relations with Greece. The First Roman-Jewish War (66–70) started during his reign. In 68 a military coup drove Nero from the throne. Facing assassination, he committed suicide on 9 June 68. Nero's rule is often associated with tyranny and extravagance. He is known for a number of executions, including those of his mother and stepbrother, and as the emperor who "fiddled while Rome burned", and as an early persecutor of Christians. This view is based upon the main surviving sources for Nero's reign — Tacitus, Suetonius and Cassius Dio. Few surviving sources paint Nero in a favorable light. Some sources, though, including some mentioned above, portray him as an emperor who was popular with the common Roman people, especially in the East. The study of Nero is problematic as some modern historians question the reliability of ancient sources when reporting on Nero's tyrannical acts.

Nero was born on 15 December, AD 37, in Antium, near Rome. He was the only son of Gnaeus Domitius Ahenobarbus and second and third cousin of Agrippina the Younger, sister of emperor Caligula. Lucius' father was the grandson of Gnaeus Domitius Ahenobarbus and Aemilia Lepida through their son Lucius Domitius Ahenobarbus. Gnaeus was a grandson to Mark Antony and Octavia Minor through their daughters Antonia Major and Antonia Minor, by each parent. With Octavia, he was the grandnephew of Caesar Augustus. Nero's father had been employed as a praetor and was a member of Caligula's staff when the latter traveled to the East. Nero's father was described by Suetonius as a murderer and a cheat who was charged by emperor Tiberius with treason, adultery, and incest. Tiberius died, allowing him to escape these charges. Nero's father died of edema (or "dropsy") in 39 AD when Nero was three. Lucius' mother was Agrippina the Younger, who was great-granddaughter to Caesar Augustus and his wife Scribonia through their daughter Julia the Elder and her husband Marcus Vipsanius Agrippa. Agrippina's father, Germanicus, was grandson to Augustus's wife, Livia, on one side and to Mark Antony and Octavia on the other. Germanicus' mother Antonia Minor, was a daughter of Octavia Minor and Mark Antony. Octavia was Augustus' second elder sister. Germanicus was also the adoptive son of Tiberius. A number of ancient historians accuse Agrippina of murdering her third husband, emperor Claudius.

In the book "The Lives of the Twelve Caesars" the Roman historian Suetonius describes Nero as "about the average height, his body marked with spots and malodorous, his hair light blond, his features regular rather than attractive, his eyes blue and somewhat weak, his neck over thick, his belly prominent, and his legs very slender." Nero was not expected ever to become emperor because his maternal uncle, Caligula, had begun his reign at the age of 25 with ample time to produce his own heir. Lucius' mother, Agrippina, lost favor with Caligula and was exiled in 39 after her husband's death. Caligula seized Lucius's inheritance and sent him to be raised by his less wealthy aunt, Domitia Lepida, who was the mother of Valeria Messalina, Claudius's third wife. Caligula, his wife Caesonia and their infant daughter Julia Drusilla were murdered on January 24, 41. These events led Claudius, Caligula's uncle, to become emperor. Claudius allowed Agrippina to return from exile. Claudius had married twice before marrying Valeria Messalina. His previous marriages produced three children including a son, Drusus, who died at a young age. He had two children with Messalina - Claudia Octavia (b. 40) and Britannicus (b. 41). Messalina was executed by Claudius in the year 48. In 49, Claudius married a fourth time, to Agrippina. To aid Claudius politically, Lucius was officially adopted in 50 and renamed Nero Claudius Caesar Drusus. Nero was older than his stepbrother, Britannicus, and became heir to the throne.

Nero was proclaimed an adult in 51 at the age of 14. He was appointed proconsul, entered and first addressed the Senate, made joint public appearances with Claudius, and was featured in coinage. In 53, he married his stepsister Claudia Octavia. Claudius died in 54 and Nero was established as emperor. Though accounts vary greatly, many ancient historians state Agrippina poisoned Claudius. It is not known how much Nero knew or was involved in the death of Claudius. Nero became emperor at 16, the youngest emperor up until that time. Ancient historians describe Nero's early reign as being strongly influenced by his mother Agrippina, his tutor Lucius Annaeus Seneca, and the Praetorian Prefect Sextus Afranius Burrus, especially in the first year. Other tutors were less often mentioned, such as Alexander of Aegae. Very early in Nero's rule, problems arose from competition for influence between Agrippina and Nero's two main advisers, Seneca and Burrus.

In 54, Agrippina tried to sit down next to Nero while he met with an Armenian envoy, but Seneca stopped her and prevented a scandalous scene. Nero's personal friends also mistrusted Agrippina and told Nero to beware of his mother. Nero was reportedly unsatisfied with his marriage to Octavia and entered into an affair with Claudia Acte, a former slave. In 55, Agrippina attempted to intervene in favor of Octavia and demanded that her son dismiss Acte. Nero, with the support of Seneca, resisted the intervention of his mother in his personal affairs. With Agrippina's influence over her son severed, she reportedly began pushing for Britannicus, Nero's stepbrother, to become emperor. Nearly fifteen-year-old Britannicus, heir-designate prior to Nero's adoption, was still legally a minor, but was approaching legal adulthood. According to Tacitus, Agrippina hoped that with her support, Britannicus, being the blood son of Claudius, would be seen as the true heir to the throne by the state over Nero. However, the youth died suddenly and suspiciously on 12 February, 55, the very day before his proclamation as an adult had been set. Nero claimed that Britannicus died from an epileptic seizure, but ancient historians all claim Britannicus' death came from Nero's poisoning him. After the death of Britannicus, Agrippina was accused of slandering Octavia and Nero ordered her out of the imperial residence.

Over time, Nero became progressively more powerful, freeing himself of his advisers and eliminating rivals to the throne. In 55, he removed Marcus Antonius Pallas, an ally of Agrippina, from his position in the treasury. Pallas, along with Burrus, was accused of conspiring against the emperor to bring Faustus Sulla to the throne. Seneca was accused of having relations with Agrippina and embezzlement. Seneca succeeded in having himself, Pallas and Burrus acquitted. According to Cassius Dio, at this time, Seneca and Burrus reduced their role in governing from careful management to mere moderation of Nero.

In 58, Nero became romantically involved with Poppaea Sabina, the wife of his friend and future emperor Otho. Reportedly because a marriage to Poppaea and a divorce from Octavia did not seem politically feasible with Agrippina alive, Nero ordered the murder of his mother in 59. A number of modern historians find this an unlikely motive as Nero did not marry Poppaea until 62. Additionally, according to Suetonius, Poppaea did not divorce her husband until after Agrippina's death, making it unlikely that the already married Poppaea would be pressing Nero for marriage. Some modern historians theorize that Nero's execution of Agrippina was prompted by her plotting to set Rubellius Plautus on the throne. According to Suetonius, Nero tried to kill his mother through a planned shipwreck, which took the life of her friend, Acerronia Polla, but when Agrippina survived, he had her executed and framed it as a suicide. The incident is also recorded by Tacitus.

In 62 Nero's adviser, Burrus, died. Additionally, Seneca was again faced with embezzlement charges. Seneca asked Nero for permission to retire from public affairs. Nero divorced and banished Octavia on grounds of infertility, leaving him free to marry the pregnant Poppaea. After public protests, Nero was forced to allow Octavia to return from exile, but she was executed shortly after her return. Nero also was reported to have kicked Poppaea to death in 65 before she could have his second child. However, modern historians, noting Suetonius, Tacitus and Cassius Dio's possible bias against Nero and the likelihood that they did not have eyewitness accounts of private events, postulate that Poppaea may have died because of complications of miscarriage or childbirth.

Accusations of treason being plotted against Nero and the Senate first appeared in 62. The Senate ruled that Antistius, a praetor, should be put to death for speaking ill of Nero at a party. Later, Nero ordered the exile of Fabricius Veiento who slandered the Senate in a book. Tacitus writes that the roots of the conspiracy led by Gaius Calpurnius Piso began in this year. To consolidate power, Nero executed a number of people in 62 and 63 including his rivals Pallas, Rubellius Plautus and Faustus Sulla. According to Suetonius, Nero "showed neither discrimination nor moderation in putting to death whomsoever he pleased" during this period. Nero's consolidation of power also included a slow usurping of authority from the Senate. In 54, Nero promised to give the Senate powers equivalent to those under Republican rule. By 65, senators complained that they had no power left and this led to the Pisonian conspiracy. Over the course of his reign, Nero often made rulings that pleased the lower class. Nero was criticised as being obsessed with being popular.

Nero began his reign in 54 by promising the Senate more autonomy. In this first year, he forbade others to refer to him with regard to enactments, for which he was praised by the Senate. Nero was known for spending his time visiting brothels and taverns during this period. In 55, Nero began taking on a more active role as an administrator. He was consul four times between 55 and 60. During this period, some ancient historians speak fairly well of Nero and contrast it with his later rule. Under Nero, restrictions were put on the amount of bail and fines. Also, fees for lawyers were limited. There was a discussion in the Senate on the misconduct of the freedmen class, and a strong demand was made that patrons should have the right of revoking freedom. Nero supported the freedmen and ruled that patrons had no such right. The Senate tried to pass a law in which the crimes of one slave applied to all slaves within a household. Despite riots from the people, Nero supported the Senate on their measure, and deployed troops to organise the execution of 400 slaves affected by the law. However he vetoed strong measures against the freedmen affected by the case. After tax collectors were accused of being too harsh to the poor, Nero transferred collection authority to lower commissioners. Nero banned any magistrate or procurator from exhibiting public entertainment for fear that the venue was being used as a method to sway the populace. Additionally, there were many impeachments and removals of government officials along with arrests for extortion and corruption. When further complaints arose that the poor were being overly taxed, Nero attempted to repeal all indirect taxes. The Senate convinced him this action would bankrupt the public treasury. As a compromise, taxes were cut from 4.5% to 2.5%. Additionally, secret government tax records were ordered to become public. To lower the cost of food imports, merchant ships were declared tax-exempt.

In imitation of the Greeks, Nero built a number of gymnasiums and theatres. Enormous gladiatorial shows were also held. Nero also established the quinquennial Neronia. The festival included games, poetry and theater. Historians indicate that there was a belief that theatre led to immorality. Others considered that to have performers dressed in Greek clothing was old fashioned. Some questioned the large public expenditure on entertainment.

In 64, Rome burned. Nero enacted a public relief effort as well as significant reconstruction. A number of other major construction projects occurred in Nero's late reign. Nero had the marshes of Ostia filled with rubble from the fire. He erected the large Domus Aurea. In 67, Nero attempted to have a canal dug at the Isthmus of Corinth. Ancient historians state that these projects and others exacerbated the drain on the State's budget.

The economic policy of Nero is a point of debate among scholars. According to ancient historians, Nero's construction projects were overly extravagant and the large number of expenditures under Nero left Italy "thoroughly exhausted by contributions of money" with "the provinces ruined." Modern historians, though, note that the period was riddled with deflation and that it is likely that Nero's spending came in the form of public works projects and charity intended to ease economic troubles.

The Great Fire of Rome erupted on the night of 18 July to 19 July, AD 64. The fire started at the southeastern end of the Circus Maximus in shops selling flammable goods. The extent of the fire is uncertain. According to Tacitus, who was nine at the time of the fire, it spread quickly and burned for over five days. It completely destroyed three of fourteen Roman districts and severely damaged seven. The only other historian who lived through the period and mentioned the fire is Pliny the Elder, who wrote about it in passing. Other historians who lived through the period (including Josephus, Dio Chrysostom, Plutarch, and Epictetus) make no mention of it. It is uncertain who or what actually caused the fire — whether accident or arson. Suetoniusand Cassius Dio favor Nero as the arsonist, so he could build a palatial complex. It is also said that Nero played the fiddle while Rome burned. Tacitus mentions that Christians confessed to the crime, but it is not known whether these confessions were induced by torture. However, fires started accidentally were common in ancient Rome. In fact, Rome suffered another large fire in 69 and in 80. It was said by Suetonius and Cassius Dio that Nero sang the "Sack of Ilium" in stage costume while the city burned. Popular legend claims that Nero played the fiddle at the time of the fire, an anachronism based merely on the concept of the lyre, a stringed instrument associated with Nero and his performances. (There were no fiddles in 1st-century Rome.) Tacitus's account, however, has Nero in Antium at the time of the fire. Tacitus also said that Nero playing his lyre and singing while the city burned was only rumor.

According to Tacitus, upon hearing news of the fire, Nero returned to Rome to organize a relief effort, which he paid for from his own funds. Nero's contributions to the relief extended to personally taking part in the search for and rescue of victims of the blaze, spending days searching the debris without even his bodyguards. After the fire, Nero opened his palaces to provide shelter for the homeless, and arranged for food supplies to be delivered in order to prevent starvation among the survivors. In the wake of the fire, he made a new urban development plan. Houses after the fire were spaced out, built in brick, and faced by porticos on wide roads. Nero also built a new palace complex known as the Domus Aurea in an area cleared by the fire. This included lush artificial landscapes and a 30 meter statue of himself, the Colossus of Nero. The size of this complex is debated (from 100 to 300 acres). To find the necessary funds for the reconstruction, tributes were imposed on the provinces of the empire. According to Tacitus, the population searched for a scapegoat and rumors held Nero responsible. To deflect blame, Nero targeted Christians. He ordered Christians to be thrown to dogs, while others were crucified and burned.

Nero enjoyed driving a one-horse chariot, singing to the lyre and poetry. He even composed songs that were performed by other entertainers throughout the empire. At first, Nero only performed for a private audience. In 64, Nero began singing in public in Neapolis in order to improve his popularity. He also sang at the second quinquennial Neronia in 65. It was said that Nero craved the attention, but historians also write that Nero was encouraged to sing and perform in public by the Senate, his inner circle and the people. Ancient historians strongly criticize his choice to perform, calling it shameful. Nero was convinced to participate in the Olympic Games of 67 in order to improve relations with Greece and display Roman dominance. As a competitor, Nero raced a ten-horse chariot and nearly died after being thrown from it. He also performed as an actor and a singer. Though Nero faltered in his racing (in one case, dropping out entirely before the end) and acting competitions, he won these crowns nevertheless and paraded them when he returned to Rome. The victories are attributed to Nero bribing the judges and his status as emperor.

Shortly after Nero's accession to the throne in 55, the Roman vassal kingdom of Armenia overthrew their prince Rhadamistus and he was replaced with the Parthian prince Tiridates. This was seen as a Parthian invasion of Roman territory. There was concern in Rome over how the young emperor would handle the situation. Nero reacted by immediately sending the military to the region under the command of Gnaeus Domitius Corbulo. The Parthians temporarily relinquished control of Armenia to Rome. The peace did not last and full-scale war broke out in 58. The Parthian king Vologases I refused to remove his brother Tiridates from Armenia. The Parthians began a full-scale invasion of the Armenian kingdom. Commander Corbulo responded and repelled most of the Parthian army that same year. Tiridates retreated and Rome again controlled most of Armenia. Nero was acclaimed in public for this initial victory. Tigranes, a Cappadocian noble raised in Rome, was installed by Nero as the new ruler of Armenia. Corbulo was appointed governor of Syria as a reward.

In 62, Tigranes invaded the Parthian province of Adiabene. Again, Rome and Parthia were at war and this continued until 63. Parthia began building up for a strike against the Roman province of Syria. Corbulo tried to convince Nero to continue the war, but Nero opted for a peace deal instead. There was anxiety in Rome about eastern grain supplies and a budget deficit. The result was a deal where Tiridates again became the Armenian king, but was crowned in Rome by emperor Nero. In the future, the king of Armenia was to be a Parthian prince, but his appointment required approval from the Romans. Tiridates was forced to come to Rome and partake in ceremonies meant to display Roman dominance. This peace deal of 63 was a considerable victory for Nero politically. Nero became very popular in the eastern provinces of Rome and with the Parthians as well. The peace between Parthia and Rome lasted 50 years until emperor Trajan of Rome invaded Armenia in 114.

The war with Parthia was not Nero's only major war but he was both criticized and praised for an aversion to battle. Like many emperors, Nero faced a number of rebellions and power struggles within the empire. In 60, a major rebellion broke out in the province of Britannia. While the governor Gaius Suetonius Paullinus and his troops were busy capturing the island of Mona (Anglesey) from the druids, the tribes of the south-east staged a revolt led by queen Boudica of the Iceni. Boudica and her troops destroyed three cities before the army of Paullinus was able to return, be reinforced and put down the rebellion in 61. Fearing Paullinus himself would provoke further rebellion, Nero replaced him with the more passive Publius Petronius Turpilianus.

In 65, Gaius Calpurnius Piso, a Roman statesman, organized a conspiracy against Nero with the help of Subrius Flavus and Sulpicius Asper, a tribune and a centurion of the Praetorian Guard. According to Tacitus, many conspirators wished to "rescue the state" from the emperor and restore the Republic. The freedman Milichus discovered the conspiracy and reported it to Nero's secretary, Epaphroditos. As a result, the conspiracy failed and its members were executed including Lucan, the poet. Nero's previous advisor, Seneca was ordered to commit suicide after admitting he discussed the plot with the conspirators.

In 66, there was a Jewish revolt in Judea stemming from Greek and Jewish religious tension. In 67, Nero dispatched Vespasian to restore order. This revolt was eventually put down in 70, after Nero's death. This revolt is famous for Romans breaching the walls of Jerusalem and destroying the Second Temple of Jerusalem.

In March 68, Gaius Julius Vindex, the governor of Gallia Lugdunensis, rebelled against Nero's tax policies. Lucius Verginius Rufus, the governor of Germania Superior, was ordered to put down Vindex's rebellion. In an attempt to gain support from outside his own province, Vindex called upon Servius Sulpicius Galba, the governor of Hispania Tarraconensis, to join the rebellion and further, to declare himself emperor in opposition to Nero. At the Battle of Vesontio in May 68, Verginius' forces easily defeated those of Vindex and the latter committed suicide. However after putting down this one rebel, Verginius' legions attempted to proclaim their own commander as emperor. Verginius refused to act against Nero, but the discontent of the legions of Germany and the continued opposition of Galba in Spain did not bode well for Nero. While Nero had retained some control of the situation, support for Galba increased despite his being officially declared a public enemy. The prefect of the Praetorian Guard, Gaius Nymphidius Sabinus, also abandoned his allegiance to the emperor and came out in support for Galba. In response, Nero fled Rome with the intention of going to the port of Ostia and from there to take a fleet to one of the still-loyal eastern provinces. However he abandoned the idea when some army officers openly refused to obey his commands, responding with a line from Vergil's Aeneid: "Is it so dreadful a thing then to die?" Nero then toyed with the idea of fleeing to Parthia, throwing himself upon the mercy of Galba, or to appeal to the people and beg them to pardon him for his past offences "and if he could not soften their hearts, to entreat them at least to allow him the prefecture of Egypt". Suetonius reports that the text of this speech was later found in Nero's writing desk, but that he dared not give it from fear of being torn to pieces before he could reach the Forum.

Nero returned to Rome and spent the evening in the palace. After sleeping, he awoke at about midnight to find the palace guard had left. Dispatching messages to his friends' palace chambers for them to come, none replied. Upon going to their chambers personally, all were abandoned. Upon calling for a gladiator or anyone else adept with a sword to kill him, no one appeared. He cried "Have I neither friend nor foe?" and ran out as if to throw himself into the Tiber. Returning again, Nero sought for some place where he could hide and collect his thoughts. An imperial freedman offered his villa, located 4 miles outside the city. Travelling in disguise, Nero and four loyal servants reached the villa, where Nero ordered them to dig a grave for him. As it was being prepared, he said again and again "What an artist dies in me!". At this time a courier arrived with a report that the Senate had declared Nero a public enemy and that it was their intention to execute him by beating him to death. At this news Nero prepared himself for suicide. Losing his nerve, he first begged for one of his companions to set an example by first killing himself. At last, the sound of approaching horsemen drove Nero to face the end. After quoting a line from Homer's Iliad ("Hark, now strikes on my ear the trampling of swift-footed coursers!") Nero drove a dagger into his throat. In this he was aided by his private secretary, Epaphroditos. When one of the horsemen entered, upon his seeing Nero all but dead he attempted to stop the bleeding. With the words "Too late! This is fidelity!", Nero died on 9 June 68. This was the anniversary of the death of Octavia. Nero was buried in the Mausoleum of the Domitii Ahenobarbi, in what is now the Villa Borghese (Pincian Hill) area of Rome. With his death, the Julio-Claudian dynasty came to an end. Chaos ensued in the Year of the Four Emperors.

According to Suetonius and Cassius Dio, the people of Rome celebrated the death of Nero. Tacitus, though, describes a more complicated political environment. Tacitus mentions that Nero's death was welcomed by Senators, nobility and the upper class. The lower-class, slaves, frequenters of the arena and the theater, and "those who were supported by the famous excesses of Nero", on the other hand, were upset with the news. Members of the military were said to have mixed feelings, as they had allegiance to Nero, but were bribed to overthrow him. Eastern sources, namely Philostratus II and Apollonius of Tyana, mention that Nero's death was mourned as he "restored the liberties of Hellas with a wisdom and moderation quite alien to his character" and that he "held our liberties in his hand and respected them." Modern scholarship generally holds that, while the Senate and more well-off individuals welcomed Nero's death, the general populace was "loyal to the end and beyond, for Otho and Vitellius both thought it worthwhile to appeal to their nostalgia."

Nero's name was erased from some monuments, in what Edward Champlin regards as "outburst of private zeal". Many portraits of Nero were reworked to represent other figures; according to Eric R. Varner, over fifty such images survive. This reworking of images is often explained as part of the way in which the memory of disgraced emperors was condemned posthumously. Champlin, however, doubts that the practice is necessarily negative and notes that some continued to create images of Nero long after his death.

The civil war during the Year of the Four Emperors was described by ancient historians as a troubling period. According to Tacitus, this instability was rooted in the fact that emperors could no longer rely on the perceived legitimacy of the imperial bloodline, as Nero and those before him could. Galba began his short reign with the execution of many allies of Nero and possible future enemies. One notable enemy included Nymphidius Sabinus, who claimed to be the son of emperor Caligula. Otho overthrew Galba. Otho was said to be liked by many soldiers because he had been a friend of Nero's and resembled him somewhat in temperament. It was said that the common Roman hailed Otho as Nero himself. Otho used "Nero" as a surname and reerected many statues to Nero. Vitellius overthrew Otho. Vitellius began his reign with a large funeral for Nero complete with songs written by Nero.

After Nero's suicide in 68, there was a widespread belief, especially in the eastern provinces, that he was not dead and somehow would return. This belief came to be known as the Nero Redivivus Legend. The legend of Nero's return lasted for hundreds of years after Nero's death. Augustine of Hippo wrote of the legend as a popular belief in 422.

At least three Nero imposters emerged leading rebellions. The first, who sang and played the cithara or lyre and whose face was similar to that of the dead emperor, appeared in 69 during the reign of Vitellius. After persuading some to recognize him, he was captured and executed. Sometime during the reign of Titus (79-81) there was another impostor who appeared in Asia and also sang to the accompaniment of the lyre and looked like Nero but he, too, was killed. Twenty years after Nero's death, during the reign of Domitian, there was a third pretender. Supported by the Parthians, they hardly could be persuaded to give him up and the matter almost came to war.