2.15 The Imperial Dynasties
The period of the Pax Romana included three distinct dynasties:
- The Julian dynasty: 14 – 68 CE – those emperors related (by blood or adoption) to Caesar’s line.
- The Flavian dynasty: 69 – 96 CE – a father and his two sons who seized power after a brief civil war.
- The “Five Good Emperors”: 96 – 180 CE – a “dynasty” of emperors who chose their successors, rather than power passing to their family members.
The Julian Dynasty
There is a simple and vexing problem with any discussion of the Roman emperors: the sources. While archaeology and the surviving written sources create a reasonably clear basis for understanding the major political events of the Julian dynasty, the biographical details are much more difficult. All of the surviving written accounts about the lives of the Julian emperors were written many decades, in some cases more than a century, after their reign. In turn, the two most important biographers, Tacitus and Suetonius, detested the actions and the character of the Julians, and thus their accounts are rife with scandalous anecdotes that may or may not have any basis in historical truth (Tacitus is universally regarded as the more reliable, although Suetonius’s The Twelve Caesars does make for very entertaining reading). Thus, the biographical sketches here are an attempt to summarize what is known for sure, along with some notes on the scandalous assertions that may be at least partly fabricated.
When Augustus died in 14 CE, his stepson Tiberius (r. 14 – 37 CE) became emperor. While it was possible that the Senate might have tried to reassert its power, there was no political will to do so. Only idealistic or embittered senators really dreamed of restoring the Republic, and a coup would have been rejected by the vast majority of Roman citizens. Under the Caesars, after all, the empire had never been more powerful or wealthy. Genuine concessions had been made to the common people, especially soldiers, and the only people who really lost out in the short term were the old elite families of patricians, who no longer had political power independent of the emperor (although they certainly retained their wealth and status).
Tiberius began his rule as a cautious leader who put on a show of only reluctantly following in Augustus’s footsteps as emperor. He was a reasonably competent emperor for over a decade, delegating decisions to the Senate and ensuring that the empire remained secure and financially solvent. In addition, he oversaw a momentous change to the priorities of the Roman state: the Roman Empire no longer embarked on a sustained campaign of expansion as it had ever since the early decades of the Republic half a millennium earlier. This does not appear to have been a conscious policy choice on the part of Tiberius, but instead a shift in priorities: the Senate was now staffed by land-owning elites who did not predicate their identities on warfare, and Tiberius himself saw little benefit in warring against Persia or invading Germany. The Empire would continue to expand at times in the following centuries, but never to the degree or at the pace that it had under the Republic. Eventually, Tiberius retreated to a private estate on the island of Capri (off of the west coast of Italy). Suetonius’s biography would have it that on Capri, Tiberius indulged his penchant for bloodshed and sexual abuse, which is highly questionable – what is no questionable is that Tiberius became embittered and suspicious, ordering the murders of various would-be claimants to his throne back in Rome, and sometimes ignoring affairs of state. When he died, much to the relief of the Roman populace, great hopes were pinned on his heir.
That heir was Gaius (r. 37 – 41 CE), much better known as “Caligula,” literally meaning “little boots” but which translates best as “bootsie.” As a boy, Caligula moved with his father, a famous and well-liked general related by marriage to the Julians, from army camp to army camp. While he did so he liked to dress up in miniature legionnaire combat boots; hence, he was affectionately dubbed “Bootsie” by the troops. Even if some of the stories of his personal sadism are exaggerated, there is no doubt that Caligula was a disastrous emperor. According to the biographers, Caligula quickly earned a reputation for cruelty and megalomania, enjoying executions (or simple murders) as forms of entertainment and spending vast sums on shows of power. Convinced of his own godhood, Caligula had the heads of statues of the gods removed and replaced with his own head. He liked to appear in public dressed as various gods or goddesses; one of his high priests was his horse, Incitatus, whom he supposedly appointed as a Roman consul. He staged an invasion of northern Gaul of no tactical significance which culminated in a Triumph (a military parade, traditionally one of the greatest demonstrations of power and glory of a victorious general) back in Rome. Much of the scandalous gossip about him, historically, is because he was unquestionably the enemy of the Senate, seeing potential traitors everywhere and inflicting waves of executions against former supporters. He used trials for treason to enrich himself after squandering the treasury on buildings and public games. He also made senators wait on him dressed as slaves, and demanded that he be addressed as “master and god.” He was finally murdered by a group of senators and guardsmen.
The next emperor was Claudius (r. 41 – 54 CE), the one unquestionably competent emperor of the Julian line after Augustus. Claudius had survived palace intrigues because he walked with a limp and spoke with a pronounced stutter; he was widely considered to be a simpleton, whereas he was actually highly intelligent. Once in power Claudius proved himself a competent and refreshingly sane emperor, ending the waves of terror Caligula had unleashed. He went on to oversee the conquest of England, first begun by Julius Caesar decades earlier. He was also a scholar, mastering the Etruscan and Punic languages and writing histories of those two civilizations (now lost, unfortunately). He restored the imperial treasury, depleted by Tiberius and Caligula, and maintained the Roman borders. He also established a true bureaucracy to manage the vast empire and began the process of formally distinguishing between the personal wealth of the emperor and the official budget of the Roman state.
According to Roman historians, Claudius was eventually betrayed and poisoned by his wife, who sought to have her son from another marriage become emperor. That son was Nero. Nero (r. 54 – 68 CE) was another Julian who acquired a terrible historical reputation; while he was fairly popular during his first few years as emperor, he eventually succumbed to a Caligula-like tendency of having elite Romans (including his domineering mother) killed. In 64 CE, a huge fire nearly destroyed the city, which was largely built out of wood. This led to the legend of Nero “playing his fiddle while Rome burned” – in fact, in the fire’s aftermath Nero had shelters built for the homeless and set about rebuilding the roughly half of the city that had been destroyed, using concrete buildings and grid-based streets. That said, he did use space cleared by the fire to begin the construction of a gigantic new palace in the middle of Rome called the “golden house,” into which he poured state revenues.
Nero’s terrible reputation arose from the fact that he unquestionably hounded and persecuted elite Romans, using a law that made it illegal to slander the emperor to extract huge amounts of money from senators and equestrians. He also ordered imagined rivals and former advisors to kill themselves, probably out of mere jealousy. Besides Roman elites, his other major target was the early Christian movement, whom he blamed for the fire in Rome and relentlessly persecuted (thousands were killed in the gladiatorial arena, ripped apart by wild animals). Thus, the two groups in the position to write Nero’s history – elite Romans and early Christians – had every reason to hate him. In addition, Nero took great pride in being an actor and musician, two professions that were considered by Roman elites to be akin to prostitution. His artistic indulgences were thus scandalous violations of elite sensibilities. After completely losing the support of both the army and the Senate, Nero committed suicide in 68 CE.
The Flavian Dynasty
In the aftermath of Nero’s death, a brief civil war broke out. Four generals competed for the emperorship, supported by their armies. In the end, a general named Vespasian (r. 69 – 79 CE) seized power and founded a fairly short-lived dynasty consisting of himself and his two sons, known to history as the Flavians. The importance of Vespasian’s takeover was that it reinforced the idea that real power in Rome was no longer that of the old power-broking families, but instead the armies; Vespasian had no legal claim to the throne, but his emperorship was ratified by the Senate nevertheless. The emperor’s major concern had to be maintaining the loyalty of the armies above all else, because they could and would openly fight to put their man on the throne in a time of crisis – this occurred numerous times in the centuries to come.
Vespasian was one of the great emperors of the early empire. He pulled state finances back from the terrible state they had been left in by Nero and restored the relationship between the emperor and the Roman elite; it certainly did not hurt his reputation that he was a successful general, one of the traditional sources of status among Roman leaders. He was also renowned for his openness and his grounded outlook. Reputably, he did not keep a guard and let people speak to him directly in public audiences. In an act of classic Romanitas, he started work on the famous Colosseum in Rome in order to provide a grand setting for public games and performances. All of this happened in just a decade; he died of natural causes in 79 CE.
![Modern day picture of Roman Colosseum. In Roman times, the amphitheater was called the Flavian amphitheater after the Emperor Titus Flavius Vespasianus's middle name.](https://media.ccconline.org/ccco/2020Master/HIS101/eText/Images/2.12-Colosseum-2003-07-09.jpg)
Vespasian’s second son, Domitian (r. 81 – 96 CE), proved to be a terrible ruler. He created an atmosphere of terror in elite Roman circles in an effort to watch out for potential rebels, murdering senators and elites he suspected. He adopted a Caligula-like concern for glorifying himself and liked to appear before the Senate in the armor of a Roman commander returning from victory. He was moralistic about both sex and the divinity of the emperors, instituting the policy that all oaths had to be sword to the godhood of the emperor. About the only positive undertaking in his rule was major building projects, both for palaces for himself and public works, including roads and fortifications, and it is also worth noting that the empire remained under a stable administration during his reign. That noted, Domitian became increasingly paranoid and violent between 89 and 96 CE, until he was finally killed by assassins in the palace.
The “Five Good Emperors” and the Severans
Following the work of the great eighteenth-century English historian Edward Gibbon, historians frequently refer to the rulers of the Roman Empire who followed the death of Domitian as the “Five Good Emperors,” those who successfully managed the Empire at its height. These men include – Nerva (r. 96 – 98 CE), Trajan (r. 98 – 117 CE), Hadrian (r. 117 – 138 CE), Antonius Pius (r. 138 – 161 CE), and Marcus Aurelius (r. 161 – 180 CE). For almost a century, emperors appointed their own successors from the most competent members of the younger generation of Roman elites. Each emperor (except one) would adopt a younger man as his son, thereby ensuring his succession. Rome prospered during this period under this relatively meritocratic system of political succession. It was under one of these emperors, Trajan, that the empire achieved its greatest territorial expanse.
One of the important aspects of the behavior of the “good emperors” is that they fit the model of a “philosopher-king” first described by Plato centuries earlier. Even though monarchy had been repugnant to earlier Romans, during the period of the Republic, the good emperors tried to live and act according to traditional Roman Romanitas, undertaking actions not only for their own glorification but for the good of the Roman state. The borders were maintained or expanded, public works and infrastructure built, and infighting among elites kept to a minimum.
Trajan’s accomplishments deserve special mention, not only because of his success in expanding the Empire, but in how he governed it. He was a fastidious and straightforward administrator, focusing his considerable energies on the practical business of rule. He personally responded to requests and correspondence, he instituted a program of inexpensive loans to farmers and used the interest to pay for food for poor children, and he worked closely and successfully with the Senate to maintain stability and imperial solvency. The fact that personally led the legions on major military campaigns capped his reign in the military glory expected of an emperor following the rule of the Flavians, but he was remembered at least as well for his skill as a leader in peacetime.
The next two emperors, Hadrian and Antoninus Pius, did not win comparable military glory, but they did defend the borders, oversaw major building projects, and maintained Roman stability. Hadrian spent much of his reign touring the Roman provinces, particularly Greece. It was clear by his reign that the emperor’s authority was practically limitless, with both emperors issuing imperial proclamations while away from Rome that carried the force of law.
This period of successful rule eventually broke down when the practice of choosing a competent follower ended – the emperor Marcus Aurelius, a brilliant leader and Stoic philosopher (161 – 180 CE) named his arrogant and foolhardy son Commodus (r. 177 – 192 CE) his co-emperor three years before Aurelius’s death. Storm clouds had already been gathering under Aurelius, who found himself obliged to lead military campaigns against incursions of Germanic barbarians in the north despite his own lack of a military background. He had, however, been a scrupulously efficient and focused political leader. His decision to make Commodus his heir was due to a simple fact: Aurelius was the first of the Five Good Emperors to have a natural-born son who survived to adulthood.
As emperor, Commodus indulged his taste for debauchery and ignored affairs of state, finally being assassinated after twelve years of incompetence. One last dynasty emerged in the aftermath of Commodus’s death, that of the Severans who ruled from 192 – 235 CE. They faced growing threats on the Roman borders, as Germanic tribes staged repeated and temporarily successful incursions to the north and a new Persian dynasty known as the Sassanids pressed against Roman territory to the east. The last Severan emperor, Severus Alexander, died in 235 CE, ushering in a terrible period of military defeat and instability.