Titus Flavius Domitianius was the younger son of Vespasian and Flavia Domitilla, born in AD 51 at Rome.
He was the younger and the clearly less favoured son of Vespasian who cared much more for his heir Titus.
During his fatherís uprising against Vitellius in AD 69, Domitian was in fact in Rome. Though he remained unharmed.
When the city prefect of Rome and elder brother of Vespasian, Titus Flavius Sabinus attempted to seize power, during the confusion about Vitellius' alleged abdication, on 18 December AD 69, Domitian was with his uncle Sabinus. He hence went through the fighting on the Capitol, though, unlike Sabinus, he managed to escape.
For a short time after arrival of his father's troops, Domitian enjoyed the privilege of acting as regent. Mucianus (the governor of Syria and ally of Vespasian who had led an army of 20'000 to Rome) acted as Domitian's colleague in this regency and carefully kept Domitian in check.
For example with there being rebels against the new regime in Germany and Gaul, Domitian was eager to seek glory in suppressing the revolt, trying to equal his brother Titus' military exploits. But he was prevented from doing this by Mucianus.
When alas Vespasian arrived in Rome to rule it was made evidently clear to everyone that Titus was to be the imperial heir.
Titus had no son. Hence if he failed to still produce or adopt an heir, the throne would eventually fall to Domitian. Domitian, however, was never granted any position of authority nor allowed to win any military glory for himself. If Titus was meticulously groomed to be emperor, Domitian received no such attention at all. Evidently he was not deemed fit by his father to hold power.
Domitian instead dedicated himself to poetry and the arts, though it is thought he harboured much resentment at his treatment.
When Titus eventually acceded to the throne in AD 79 nothing changed for Domitian. He was granted honours, but nothing else. Relations between the two brothers were markedly cool and it is largely believed that Titus shared his deceased father's opinion that Domitian was not fit for office.
In fact Domitian later claimed that Titus had denied him what should had rightfully been his rightful place as imperial colleague.
Titus died in AD 81 amongst rumours that Domitian had poisoned him. But more likely he died from illness.
But Domitian was not even to wait for his brother to die. While Titus lay dying, he hurried to the praetorian camp and had himself proclaimed emperor by the soldiers.
The following day, 14 September AD 81, with Titus dead, he was confirmed emperor by the senate. His first act was, no doubt reluctantly, to enact Titus' deification. He may have held a grudge, but his own interests were best served by further celebrating the Flavian house.
But now Domitian was determined to equal the military achievements of his predecessors. He wanted to be known as a conqueror.
In AD 83 he completed the conquest of the Agri Decumates, the lands beyond the upper Rhine and upper Danube, which his father Vespasian had begun. He moved against tribes like the Chatti and drove the empire's frontier to the rivers Lahn and Main.
After such victorious campaigns against the Germans, he would often wear the costume of a victorious general in public, at times also when he visited the senate.
Shortly after he raised the pay of the army from 300 to 400 sesterces, a fact which should naturally make him popular with the soldiery. Although by that time a pay rise had perhaps become well necessary, as over time inflation had reduced the soldiers' income.
By all accounts Domitian appears to have been a thoroughly nasty person, rarely polite, insolent, arrogant and cruel.
He was a tall man, with large eyes, though weak sight.
And showing all the signs of someone drunk with power, he preferred to be addressed as 'dominus et deus' ('master and god').
In AD 83 Domitian displayed that terrifying adherence to the very letter of the law, which should make him so feared by the people of Rome. Three Vestal Virgins, convicted of immoral behaviour, were put to death. It is true that these stringent rules and punishments had once been observed by Roman society. But times had changed and the public now tended to see these punishments of the Vestals as mere acts of cruelty.
Meanwhile the governor of Britain, Cnaeus Julius Agricola, was successfully campaigning against the Picts. He had already won some victories in various parts of Britain and now advanced into northern Scotland were at Mons Graupius he gained a significant victory over the Picts in battle.
Then in AD 85 Agricola was suddenly recalled from Britain. If he was at the brink of achieving the final conquest of Britain, has been the subject of much speculation. One will never know. It appears that Domitian, so eager to prove himself a great conqueror, was in fact jealous of Agricola's success.
Agricola's death in AD 93 is rumoured to have been the work of Domitian by having him poisoned.
In a move to increase his power over the senate, Domitian proclaimed himself 'perpetual censor' in AD 85, which granted him near unlimited power over the assembly.
Domitian was more and more being understood as a tyrant, who didn't even refrain from having senators who opposed his policies assassinated.
But his strict enforcement of the law also brought its benefits. Corruption amongst city officials and within the law courts was reduced.
Seeking to impose his morals, he prohibited the castration of males and penalized homosexual senators.
Domitian's administration is judged to have been sound and efficient, though at times pedantic - he insisted on spectators at public games being properly dressed in togas. Always worried about state finances, he at times displayed near neurotic meanness.
But the finances of the empire were further organised, to the point that imperial expenditure could at last be reasonably forecast. And under his rule Rome itself became yet more cosmopolitan.
But Domitian was especially rigorous in exacting taxes from the Jews, taxes which were imposed by emperor (since Vespasian) for allowing them to practice their own faith (fiscus iudaicus). Many Christians were also tracked down and forced to pay the tax, based on the widespread Roman belief that they were Jews pretending to be something else.
The circumstances surrounding the recall of Agricola and the suspicions that this had been done only for purposes of jealousy, only further fueled Domitian's hunger for military glory.
This time his attention turned to the kingdom of Dacia. In AD 85 the Dacians under their king Decebalus had crossed the Danube in raids which even saw the death of the governor of Moesia, Oppius Sabinus.
Domitian led his troops to the Danube region but returned soon after, leaving his armies to fight. At first these armies suffered another defeat at the hands of the Dacians. However, the Dacians were eventually driven back and in AD 89 Tettius Julianus defeated them at Tapae.
But in the same year, AD 89, Lucius Antonius Saturninus was proclaimed emperor by two legions in Upper Germany. One believes that much of Saturninus' cause for rebellion was the increasing oppression of homosexuals by the emperor. Saturninus being a homosexual himself, he rebelled against the oppressor. But Lappius Maximus, the commander of Lower Germany remained loyal. At the following battle of Castellum, Saturninus was killed and this brief rebellion was at an end. Lappius on purposely destroyed Saturninus' files in the hope of preventing a massacre. But Domitian wanted vengeance. On the emperor's arrival Saturninus' officers were mercilessly punished.
Domitian suspected, most likely with good reason, that Saturninus had hardly acted on his own. Powerful allies in the senate of Rome more than likely had been his secret supporters. And so in Rome now the vicious treason trials returned, seeking to purge the senate of conspirators.
Though after this interlude on the Rhine, Domitian's attention was soon drawn back to the Danube. The Germanic Marcomanni and Quadi and the Sarmatian Jazyges were causing trouble.
A treaty was agreed with the Dacians who were all too happy to accept peace. Then Domitian moved against the troublesome barbarians and defeated them.
The time he spent with the soldiers on the Danube only further increased his popularity with the army.
In Rome however, things were different. In AD 90 Cornelia, the head of the Vestal Virgins was walled up alive in an underground cell, after being convicted of 'immoral behaviour', while her alleged lovers were beaten to death.
And in Judaea Domitian stepped up the policy introduced by his father to track down and execute Jews claiming descent from their ancient king David. But if this policy under Vespasian had been introduced to eliminate any potential leaders of rebellions, then with Domitian it was pure religious oppression. Even among leading Romans in Rome itself this religious tyranny found victims. The consul Flavius Clemens was killed and his wife Flavia Domitilla banished, for being convicted of 'godlessness'. Most likely they were sympathisers with Jews.
Domitian's ever greater religious zealotry was a sign of the emperor's increasing tyranny. The senate by then was treated with open contempt by him.
Meanwhile the treason trials had so far cost the lives of twelve former consuls. Ever more senators were falling victim to allegations of treason. Members of Domitian's own family were not safe from accusation by the emperor.
Also Domitian's own praetorian prefects weren't safe. The emperor dismissed both prefects and brought charges against them.
But the two new praetorian commanders, Petronius Secundus and Norbanus, soon learned that allegations had been made against them, too. They realised they needed to act quickly in order to save their lives.
It was summer AD 96 when the plot was hatched, involving the two praetorian prefects, the German legions, leading men from the provinces and the leading figures of Domitian's administration, - even the emperor's own wife Domitia Longina. By now, it appears, everyone wanted to rid Rome of this menace.
Stephanus, an ex-slave of Flavius Clemens' banished widow, was recruited for the assassination. Together with an accomplice Stephanus duly murdered the emperor. Though it involved a violent hand-to-hand struggle in which Stephanus himself also lost his life. (18 September AD 96)
The senate, relieved that the dangerous and tyrannical emperor was no more, was at last in a position to make its own choice of ruler. It nominated a respected lawyer, Marcus Cocceius Nerva (AD 32-98), to take over government. It was a inspired choice of great significance, which laid out the destiny of the Roman empire for some time to come. Domitian meanwhile was denied a state funeral, and his name was obliterated from all public buildings.