The Twelve Caesars
Suetonius relied heavily on gossip and rumors rather than official documents when writing about the Caesars. Modern historians criticize the book for being racy and overly reliant on hearsay. He included subjective opinions within what appeared to be objective historical knowledge. At times he omitted important events without explanation. Although he never served as a senator himself, Suetonius took the side of the Senate in most conflicts with the princeps. This resulted in both conscious and unconscious biases throughout the text. He did not quote the emperor Claudius directly because he lacked access to official letters. Despite these flaws, scholars agree the collection provides valuable information on personal habits and physical appearance. The inclusion of minute details makes it unique among contemporary Roman histories. Some sources like Tacitus' Annals are now lost, making Suetonius the major source for certain emperors.
Suetonius begins Julius Caesar's biography with the death of Caesar's father when Caesar was sixteen years old. He describes Caesar's relationship with a wealthy woman named Cossutia before recounting his engagement to Cornelia during civic strife. One memorable incident involves young Caesar being captured by pirates in the Mediterranean Sea. He insisted the ransom price of 50 talents was too low and ordered them to raise it. During captivity he addressed the pirates as subordinates and forced them to listen to his speeches. After release he raised an army alone, captured the pirates, and crucified them. Suetonius quotes Caesar saying "That man does not know how to win a war" regarding Pompey. He also includes Caesar's famous decree "Veni vidi vici" meaning I came I saw I conquered. Caesar updated the Roman calendar and renamed the month of his birth July. Before his assassination he told a friend he wanted to die suddenly and spectacularly. On the day of his death he received a document describing the entire plot but did not read it before being stabbed.
Augustus lived a modest life eating ordinary meals and sleeping on an ordinary bed despite holding supreme power. His daughter Julia became a source of great strain after her promiscuity led Augustus to banish her to Pandateria island. He cursed his enemies wishing they had wives and children like his own. A dream described in the book suggested Augustus' mother Atia was impregnated by a Roman god. The Battle of Teutoburg Forest resulted in the defeat of three legions by Arminius' forces. Augustus hit his head against a wall repeating Quintili Vare legiones redde while learning of this disaster. Tiberius retired to Rhodes at a young age before returning to Rome. Caligula married his sister to Lepidus yet treated her as a wife and threatened to make his horse consul. He built a walkway from his palace to Jupiter's temple believing himself a living deity. Nero gave concerts lasting hours where women were rumored to give birth during performances. He castrated a boy named Sporus and had sex with him pretending he was a woman. During the Great Fire of Rome Nero sang about the sack of Troy while playing the lyre.
Galba became emperor after Nero's death ended the Julio-Claudian dynasty but his reign lasted only months. Suetonius describes Galba's noble patrician family history and lists omens regarding his assassination. Otho's reign was similarly brief ending when Vitellius loyalists killed him. Otho slept one night with a dagger under his pillow before stabbing himself to death. Vitellius received an unfavorable picture because Suetonius' father fought for Otho against him. Vitellius was dragged naked by Roman subjects who tied him to a post and threw animal waste at him before killing him. The year 69 AD marked the worst period of the early principate with four emperors rising and falling in rapid succession. Suetonius exhausted all imperial archival sources during this chaotic transition period. The deaths of these short-lived rulers ended the civil war phase of Roman history. Their stories illustrate how quickly power could shift during times of instability.
Vespasian founded the Flavian dynasty after suppressing the uprising in Judaea under Nero. He reimposed discipline on Rome and rebuilt infrastructure damaged during civil wars. Vespasian is described as modest and lenient yet also extraordinarily just. His only serious failing was avarice which led to inventive taxation schemes. When his son Titus criticized a tax on public toilets Vespasian held up coins saying money has no odor despite coming from urine. Titus finished the Flavian Amphitheater known today as the Colosseum. During his reign Mount Vesuvius erupted causing destruction across southern Italy. A great plague struck Rome alongside fires that tested his leadership. Titus died after two years two months and twenty days having drawn back curtains to gaze at the sky. Domitian ruled as an autocrat partly due to lack of political skills but also because of his nature. He built temples and enforced public morality by law while leading battles against Dacians on the Danube frontier. Domitian's suspicious temper grew worse after revolts in Germany. He was murdered in 96 AD by a group including his wife Domitia Longina. The Senate condemned his memory and repealed all his acts making him one of history's tyrants with considerable accomplishments.
The oldest surviving copy of The Twelve Caesars dates to Tours in the late eighth or early ninth century AD. It currently resides in the Bibliothèque nationale de France yet lacks both prologue and first part of Julius Caesar's life. Nineteen copies survive from the thirteenth century or earlier showing errors split into Alpha and Beta branches. John Lydus quoted the dedication to Septicius Clarus in his sixth-century book De magistratibus populi Romani allowing dating between 119 and 121 AD. Manuscripts exist across Europe including locations like Wolfenbüttel Vatican Florence London Oxford Paris and Durham. Some texts originate from England others from France or Italy reflecting widespread medieval interest. The presence of certain errors suggests two distinct transmission lines of roughly equal size. These copies preserve Suetonius' work despite centuries of copying mistakes and lost sections. Scholars trace how each branch evolved through different scriptoria across medieval Christendom.
Marius Maximus compiled biographies of second- and third-century emperors using Suetonius as a model though his collection no longer survives. Einhard modeled his Life of Charlemagne on Suetonius borrowing phrases describing Augustus for Charlemagne's appearance. Robert Graves published a widely read translation in 1957 which later became dramatized by BBC television. Tom Holland released a new hardback edition in 2025 entering Sunday Times nonfiction bestseller lists after two millennia. Collecting one coin of each Caesar remains a challenge for numismatists studying Roman currency. Artists created series paintings and sculptures based on the Twelve Caesars including Titian's Eleven Caesars. Aldobrandini Tazze represents twelve sixteenth-century silver standing cups depicting imperial figures. Translations continue appearing with editions from Penguin Classics Oxford University Press and Bristol Classical Press. Modern readers engage with Suetonius' vivid portraits despite historical criticisms about accuracy and bias. The work influences contemporary understanding of ancient Rome through its detailed personal accounts.
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Common questions
When did Gaius Suetonius Tranquillus write The Twelve Caesars?
Gaius Suetonius Tranquillus wrote the twelve biographies in 121 AD while serving as secretary to Emperor Hadrian. He dedicated the work to his friend Gaius Septicius Clarus who held the title of praetorian prefect at that time.
Why do modern historians criticize Suetonius for writing about Roman emperors?
Modern historians criticize the book for being racy and overly reliant on hearsay rather than official documents. Suetonius included subjective opinions within what appeared to be objective historical knowledge and omitted important events without explanation.
What happened when Julius Caesar was captured by pirates in the Mediterranean Sea?
Julius Caesar insisted the ransom price of 50 talents was too low and ordered the pirates to raise it during his captivity. After release he raised an army alone, captured the pirates, and crucified them for their actions.
How many years did Vespasian rule before his death in 96 AD?
Vespasian ruled from 69 AD until his death in 79 AD after founding the Flavian dynasty and rebuilding infrastructure damaged during civil wars. His son Titus finished the Flavian Amphitheater known today as the Colosseum during this reign.
When was The Twelve Caesars written according to John Lydus' sixth-century book De magistratibus populi Romani?
John Lydus quoted the dedication to Septicius Clarus in his sixth-century book De magistratibus populi Romani allowing dating between 119 and 121 AD. The oldest surviving copy dates to Tours in the late eighth or early ninth century AD.
All sources
6 references cited across the entry
- 2journalA Preliminary Study of Certain Manuscripts of Suetonius' Lives of the CaesarsClement Lawrence Smith — 1901
- 3journalThe Transmission of Suetonius's Caesars in the Middle AgesRobert A Kaster — Spring 2014
- 4bookSuetonius the Biographer: Studies in Roman LivesJohn Henderson — Oxford Scholarship Online — 2014
- 5webCoins of the Twelve CaesarsMike Markowitz — 15 March 2016
- 6news2,000-year-old book about Roman emperors enters bestseller chartsElla Creamer — 2025-02-24