Flavius Valerius Constantius (c. 250 – 25 July 306), also called Constantius I, was a Roman emperor from 305 to 306. He was one of the four original members...

351 to 354, as Caesar under emperor Constantius II (r. 337–61), his cousin. A grandson of emperor Constantius Chlorus (r. 293–306) and empress Flavia Maximiana...

(Flavius) Julius Constantius (died September 337 AD) was a member of the Constantinian dynasty, being a son of Emperor Constantius Chlorus and his wife Flavia...

an informal name for the ruling family of the Roman Empire from Constantius Chlorus (died 306) to the death of Julian in 363. It is named after its most...

Constantius II (Latin: Flavius Julius Constantius; Greek: Κωνστάντιος, translit. Kōnstántios; 7 August 317 – 3 November 361) was Roman emperor from 337...

throughout the empire. In 288, Maximian appointed Constantius to serve as his praetorian prefect in Gaul. Constantius left Helena to marry Maximian's stepdaughter...

Caesars appointed by Constantine I: from west to east, the territories of Constantine II, Constans, Dalmatius and Constantius II. The PLRE’s statement that...

Thereafter there were tensions with his remaining brother and co-augustus Constantius II (r. 337–361), including over the exiled bishop Athanasius of Alexandria...

founded by Constantius I Chlorus. The legions objective was to protect the Armorican coast and fight the Roman-British usurper, Allectus. I Flavia Martis...

Galerius and Constantius were appointed caesares in March 293. Diocletian and Maximian retired on 1 May 305, raising Galerius and Constantius to the rank...

a daughter of Roman Emperor Constantius Chlorus and Flavia Maximiana Theodora, and half sister of Emperor Constantine I. She was married to Bassianus...

Licinius did not control the west. Although technically recognized by Constantius II, who even sent him the imperial diadem, Vetranio is often regarded...

Julius Constantius and his first wife Galla. She is assumed to be a full sister of Gallus. Julius Constantius was a son of Constantius Chlorus and Flavia...

Constantius Chlorus and Theodora, leaving only Constantius and his brothers Constantine II and Constans I, and their cousins, Julian and Constantius Gallus...

(senior Roman emperor) Constantius I Chlorus War of Magnentius (350–353), after the assassination of Roman co-emperor Constans I War between Western Roman...

Vulcacius Rufinus. She married Julius Constantius, son of Constantius Chlorus and half-brother of Emperor Constantine I. From their union a son was born,...

Claudia was the purported mother of Roman emperor Constantius Chlorus according to ancient sources. These sources claim her to be a relative of Roman...

overthrew Tetricus I in a bloody battle at the Catalaunian Fields in 274. With the re-organization of the Roman Army (Constantius I Chlorus), the legions guarding...

Augustus) – Galerius and Constantius Chlorus. The senior emperors jointly abdicated and retired in 305 AD, allowing Constantius and Galerius to be elevated...

11 – Julius Constantius, son of Constantius Chlorus (executed) September 24 – Hannibalianus, king of the Pontus and nephew of Constantine I (executed)...

Maximiana Theodora (died before 337) was a Roman empress as the wife of Constantius Chlorus. She is often referred to as a stepdaughter of Emperor Maximian by...

Waugh. It is unknown where she first met Constantius. The historian Timothy Barnes has suggested that Constantius, while serving under Emperor Aurelian,...

Roman emperors died in Eboracum: Septimius Severus in 211 AD, and Constantius Chlorus in 306 AD. The first known recorded mention of Eboracum by name is...

to the beginning of the 7th century. During that period, emperor Justinian I (527–565) oversaw reinforcement of defensive structures in the region, and...

for Late Roman building activities was found. During the reign of Constantius I Chlorus a granary was constructed here for the shipment of grain to Britannia...

Diocletian, and was consul in 292. In 296, he assisted the western Caesar Constantius Chlorus in re-establishing Roman rule in Britain, following the illegal rules...

Diocletian in Nicomedia, thus securing the loyalty of his father Constantius Chlorus, Caesar of the Western Roman Empire. When Constantine wanted to strengthen...

the wife of Licinius. She was the daughter of the Roman emperor Constantius Chlorus and his wife Flavia Maximiana Theodora, and younger half-sister of...

Roman emperor in AD 306 on this site, after the death of his father Constantius Chlorus in York. The statue depicts a seated Constantine wearing military...

originated as a vexillatio (detachment) of Legio I Flavia Gallicana Constantia, founded by Constantius Chlorus and stationed in Armorica in Gaul. Another is...