The change which he undertook to introduce into the government of the empire was therefore entirely based on his personal relations with his co-rulers. For this reason alone it could not possibly have been of any duration, even if it had not stood in direct opposition to the prejudices of the Romans [which latter, indeed, now had but slight influence]. The newly chosen co-rulers were the generals Galerius and Constantius Chlorus. They received the title of Cæsar, and were thus in outward rank both subordinate to the two augusti, Diocletian and Maximian. Constantius was assigned to Maximian and received the government of Spain, Gaul, and Britain, whilst Maximian took Italy and Africa under his immediate superintendence; Galerius was entrusted with the administration of Thrace, Illyricum, and Greece and appointed to be coadjutor to Diocletian, who retained the East for himself. Each of the four regents had therefore his appointed provinces to govern, and his appointed boundaries to defend; yet each could deal with the affairs of government and lead the troops in the provinces of the others; also the commands of either of the four emperors held good in all provinces, and generally all four regents were considered as one.
Four courts, four imperial armies, and a fourfold military government were necessarily very oppressive for the empire. Unfortunately, in consequence of this new organisation, the number of officials was also considerably increased and the divisions of the provinces multiplied, so that not only the entire administration proceeded with much delay and difficulty, but for the first time its despotic character was much felt even in the smallest districts and towns. All this must have been the more oppressive, as Diocletian permanently introduced Eastern forms of government. Until his time the outward appearance of the emperor, his position with regard to the nation and the court, had only had a passing air of orientalism, but with Diocletian this character of the government was firmly established for all time to come. The ordering of the court and the official hierarchy were, so to speak, established by law, the relations between the classes from thenceforth formed, as it were, the soul of the state, and the head of the empire was outwardly separated from the nation by a great gulf. From Diocletian the white bandeau or diadem, borrowed from the East, became the distinctive sign of the ruler, whilst formerly the purple raiment had been the sole sign. Diocletian and his next successor, besides this, introduced the remaining oriental regal ornaments. [The emperor Aurelian had, indeed, set them the example here.]
Now came the gloomy period when honour and consideration, power and influence, were entirely dependent on the court, when the services rendered to the person of the emperor were considered before all other services, when all patriotism and all effort for the general good disappeared. As is the case in the East up to the present time, everything became the ruler’s property, the court and the officials consumed all private wealth, and soon none could attain to distinctions and wealth but the servants of the court and the officials.
Out of the four regents, three were equally brave, but equally harsh and cruel; Constantius Chlorus alone was of a milder disposition, and distinguished by birth, education, and culture. The latter was now commissioned to reunite Britain with the empire. He did not find the task easy, and was only able to accomplish it after some years. Besides this, Constantius, as well as the three other emperors, had to fight against barbarians and insurgents. A war with Persia was most honourable for the Roman Empire; like nearly all Parthian wars since Nero’s time, it was caused by the succession to the Armenian throne. Diocletian had placed a Roman protégé in Armenia as king. The latter banished the Persian king Narses I, and the result was a war (294), the conduct of which Diocletian and Galerius undertook together. The latter, by his carelessness, brought on himself a terrible defeat in the same region where Crassus had once been annihilated. He afterwards obliterated the disgrace by a brilliant victory, and obliged the Persians to make a peace, by which they not only relinquished several provinces on the Tigris but for the first time had to renounce all claim to Mesopotamia. Diocletian secured the newly acquired lands of the eastern border by erecting considerable fortifications. He now stood at the height of his fortune.[52] Meanwhile Maximian had subdued the warlike Quinquegentiani which had been spreading terror in Africa.
DIOCLETIAN PERSECUTES THE CHRISTIANS
[297-303 A.D.]