co-emperor

Triumph in North Africa. March 10, 298.

  Maximian was Roman Emperor from 286 to 305. He was Caesar from 285 to 286, then Augustus from 286 to 305. He shared the latter title with his co-emperor and superior, Diocletian, whose political brain complemented Maximian’s military brawn. The man he appointed to police the Channel shores, Carausius, rebelled in 286, causing the secession of Britain and northwestern Gaul. Maximian failed to oust Carausius, and his invasion fleet was destroyed by storms in 289 or 290. Maximian’s subordinate, Constantius, campaigned against Carausius’ successor while Maximian held the Rhine frontier. The rebel leader was ousted in 296, and Maximian moved south to combat piracy near Hispania and Berber incursions in Mauretania. With Constantius’ victorious return after he expel...

Heraclius and Constantine. January 22, 613.

In 608, Heraclius the Elder renounced his loyalty to the Emperor Phocas, who had overthrown Maurice six years earlier. The rebels issued coins showing both Heraclii dressed as consuls, though neither of them explicitly claimed the imperial title at this time. Heraclius’s younger cousin Nicetas launched an overland invasion of Egypt; by 609, he had defeated Phocas’s general Bonosus and secured the province. Meanwhile, the younger Heraclius sailed eastward with another force via Sicily and Cyprus. As he approached Constantinople, he made contact with prominent leaders and planned an attack to overthrow aristocrats in the city, and soon arranged a ceremony where he was crowned and acclaimed as Emperor. When he reached the capital, the Excubitors, an elite Imperial Guard unit led b...

Constantius III, co-emperor. 8 February 421.

Constantius was a very competent Roman general who made his first appearance in history during the early Fifth Century. Like many of the Roman Empire‘s most illustrious military men, he had been born in Illyria. It is most likely that he had attained the rank of Master of Soldiers and Cavalry in the service of the Roman emperor Honorius by the year A. D. 411. He swiftly ended the rebellion and usurpation of Constantine III by trapping him in the city of Arelate. Constantine III held out for three months, then surrendered the city after the besiegers promised to spare his life. Honorius refused to honor the promise of clemency and had the ex-emperor and his son executed thirty miles outside the city of Ravenna where Honorius maintained his residence. Constantius was appointed patriciu...

Constantine, co-emperor of the Byzantine Empire. January 22, 613.

  Constantine was crowned co-emperor by his father on 22 January 613 and shortly after was betrothed to his cousin, Gregoria, a daughter of his father’s first cousin, Nicetas. As they were second cousins, the marriage was technically incestuous, but this consideration must have been outweighed by the advantages of the match to the family as a whole. Furthermore, its illegality paled into insignificance beside Heraclius‘ marriage to his niece Martina the same year. In comparison, Constantine’s marriage was far less scandalous than that of his father’s. Constantine and Gregoria married in 629 or perhaps early 630 and in that year their first child, Constans II was born. Their second child was another son, Theodosius. They also had a daughter named Manyanh who lat...

Emperor Diocletian and the Tetrarchy. November 20, 284 AD.

After his rise through the ranks of military until he became the Roman Cavalry Commander to Emperor Carus, when Carus and his son Numerian died on campaign in Persia, Diocletian became emperor on November 20, 284. Of course, Carus surviving son, Carinus also claimed the title, but was defeated in the battle of Margus.  Diocletian´s rule put an end to the Crisis of the Third Century. Diocletian named his fellow officer Maximian co-emperor,  Augustus, in 286. Afterwards, in 293, he named caesars Galerius and Constantius, or heirs of the augustus title. This new regime was called the Tetrarchy, or “government of four”, and it meant the geographical division of the empire into four parts. Diocletian lead military campaigns against Sarmatians, Carpi, Alemanii, and the usurpers in Egypt, securin...

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