In 350, he was made Caesar ( title ) | Caesar by Constantius and was married to the Emperor's sister, Constantina.

A few days later, Julian was married to Helena, the last surviving sister of Constantius.

Constantius II was married three times:

Second, to Eusebia, a woman of Macedonian origin from the city of Thessaloniki, whom Constantius married before his defeat of Magnentius in 353.

Third and lastly, in 360, to Faustina, who gave birth to Constantius ' only child, a posthumous daughter named Flavia Maxima Constantia, who later married Emperor Gratian.

In 417, Constantius married Honorius ' sister, Galla Placidia, much against her will.

Said niece Claudia reportedly married Eutropius and was mother to Constantius Chlorus.

To strengthen the ties between the emperor and his powerful military servant, in 289 Constantius divorced his wife ( or concubine ) Helena, and married the emperor Maximian ’ s daughter, Theodora.

Constantius was either married to, or was in concubinage with, Helena, who was probably from Nicomedia in Asia Minor.

Constantius married Coel's daughter Helena and became king of Britain.

Gratian was first married to Flavia Maxima Constantia, daughter of Constantius II.

Constantius was appointed patricius and in 417, the year of his second consulate held with Honorius as colleague, he married Galla Placidia, tying himself to the House of Theodosius.

In order to obtain a wife more consonant with his rising status, Constantius divorced Helena some time before 289, when he married Theodora, Maximian's daughter.

who reportedly married Eutropius and was mother to Constantius Chlorus.

In the legend Helena, the daughter of Cole, married the Roman senator Constantius Chlorus, who had been sent by Rome as an ambassador and was named as Cole's successor.

In 293, Theodora married Flavius Valerius Julius Constantius ( later known as Constantius Chlorus ), after he had divorced from his first wife, Helena, to strengthen his political position.

Constantius had married the princess Galla Placidia ( despite her protests ) in 417.

Galerius's sister gave birth to a son, Maximinus Daia, and Galerius's daughter by his first wife, Valeria Maximilla, married Maxentius, son of Maximian by his wife Eutropia ; Eutropia's first marriage ( to Afranius Hannibalianus ) had produced a daughter, Theodora, who became the second wife of Constantius Chlorus (" the Pale ") in 289 ( adopted by Maximian on March 1, 293 ).

Constantius I " Chlorus " married twice ; his first wife St. Helena bore him a son, Constantine I whose second wife Fausta ( daughter of Maximian and Eutropia ; sister of Maxentius ; half-sister of Constantius I's second wife Theodora ) bore him three sons ( Constantine II, Constantius II, and Constans I ) and two daughters ( Constantia and Helena ); these children were nieces and nephews of Maxentius, half-nieces and half-nephews of Licinius ( who had married their father's half-sister ), and grandchildren of Maximian.

First to a daughter of his half-uncle Julius Constantius, whose name is unknown.

His mother was an Arian, sister of Clearchus, also an Arian, and a paternal granddaughter of Gallus ( born c. 370 ), son of Anastasia ( born c. 352 ) and husband, in turn daughter of Flavius Claudius Constantius Gallus and wife and cousin Constantina.

Though his early reception in the city seems to have been lukewarm, Procopius won favor quickly by using propaganda to his advantage: he sealed off the city to outside reports and began spreading rumors that Valentinian had died ; he began minting coinage flaunting his connections to the Constantinian dynasty ; and he further exploited dynastic claims by using the widow and daughter of Constantius II to act as showpieces for his regime.

* Flavia Maxima Constantia, daughter of Constantius II

* Flavia Maxima Constantia, daughter of Constantius II ( approximate date )

He served with distinction as a soldier under Emperors Aurelian and Probus, and in 293 at the establishment of the Tetrarchy, was designated Caesar along with Constantius Chlorus, receiving in marriage Diocletian's daughter Valeria ( later known as Galeria Valeria ), and at the same time being entrusted with the care of the Illyrian provinces.

Theodora, the wife of Constantius Chlorus, is often called Maximian's stepdaughter by ancient sources, leading to claims by Otto Seeck and Ernest Stein that she was born from an earlier marriage between Eutropia and Afranius Hannibalianus .< ref > Aurelius Victor, de Caesaribus 39. 25 ; Eutropius, Breviaria 9. 22 ; Jerome, Chronicle 225 < sup > g </ sup >; Epitome de Caesaribus 39. 2, 40. 12, quoted in Barnes, New Empire, 33 ; Barnes, New Empire, 33 .</ ref > Barnes challenges this view, saying that all " stepdaughter " sources derive their information from the partially unreliable work of history Kaisergeschichte, while other, more reliable sources, refer to her as Maximian's natural daughter .< ref > Origo Constantini 2 ; Philostorgius, Historia Ecclesiastica 2. 16 < sup > a </ sup >, quoted in Barnes, New Empire, 33.

* Anastasia ( 4th century ), daughter of Roman Emperor Constantius Chlorus and Flavia Maximiana Theodora

* Flavia Maximiana Theodora, daughter of the Roman Emperor Maximian and second wife of the Emperor Constantius I Chlorus.

** Faustina Constantia, daughter of Faustina and Constantius

Honoria was the only daughter of later Emperor Constantius III and Galla Placidia.

* Flavia Julia Constantia, daughter of Roman emperor Constantius Chlorus and Flavia Maximiana Theodora

* Flavia Maxima Constantia, daughter of Constantius II and his third wife Faustina

In 355, Julian was summoned to appear before the emperor in Mediolanum and on 6 November was made Caesar of the West, marrying Constantius ' sister, Helena.

He takes command of the western provinces and marries Constantius ' sister, Helena.

* Constantius Chlorus divorces his wife ( or concubine ) Helena, mother of Constantine I, and marries emperor Maximian's stepdaughter, Theodora.

The identification of Helena as British had previously been made by Henry of Huntingdon, but has no historical validity: Constantius had divorced Helena before he went to Britain.

The precise legal nature of the relationship between Helena and Constantius is also unknown.

The sources are equivocal on the point, sometimes calling Helena Constantius ' " wife ", and sometimes, following the dismissive propaganda of Constantine's rival Maxentius, calling her his " concubine ".

Some scholars, such as the historian Jan Drijvers, assert that Constantius and Helena were joined in a common-law marriage, a cohabitation recognized in fact but not in law.

Others, like Timothy Barnes, assert that Constantius and Helena were joined in an official marriage, on the grounds that the sources claiming an official marriage are more reliable.

According to Socrates, after Constantine was proclaimed Caesar then Emperor, he ordered that all honor be paid to his mother, Helena to make up for the neglect paid her by her former husband, Constantius Chlorus.