Flavius Dalmatius also known as Dalmatius the Censor, was a censor

Censor (ancient Rome)

The censor was an officer in ancient Rome who was responsible for maintaining the census, supervising public morality, and overseeing certain aspects of the government's finances....

 (333), and a member of the Constantinian dynasty

Constantinian dynasty

The Constantinian dynasty is an informal name for the ruling family of the Roman Empire from Constantius Chlorus to the death of Julian in 363. It is named after its most famous member, Constantine the Great who became the sole ruler of the empire in 324...

, which ruled over the Roman Empire

Roman Empire

The Roman Empire was the post-Republican period of the ancient Roman civilization, characterised by an autocratic form of government and large territorial holdings in Europe and around the Mediterranean....

 at the beginning of the 4th century.

Dalmatius was the son of Constantius Chlorus

Constantius Chlorus

Constantius I , commonly known as Constantius Chlorus, was Roman Emperor from 293 to 306. He was the father of Constantine the Great and founder of the Constantinian dynasty. As Caesar he defeated the usurper Allectus in Britain and campaigned extensively along the Rhine frontier, defeating the...

 and Flavia Maximiana Theodora

Flavia Maximiana Theodora

Flavia Maximiana Theodora was the stepdaughter of Maximian. Her parents were Flavius Afranius Hannibalianus and wife, divorced before 283, Eutropia, later wife of Maximian. Theodora's father was consul in 292, and praetorian prefect under Diocletian...

, and thus half-brother of the Emperor Constantine I.

Dalmatius spent his youth in the Gallic

Gaul

Gaul was a region of Western Europe during the Iron Age and Roman era, encompassing present day France, Luxembourg and Belgium, most of Switzerland, the western part of Northern Italy, as well as the parts of the Netherlands and Germany on the left bank of the Rhine. The Gauls were the speakers of...

 Tolosa

History of Toulouse

The city of Toulouse, in Midi-Pyrénées, southern France can be traced back to ancient times. It was the capital of the County of Toulouse in the Middle Ages and today is the capital of the Midi-Pyrénées region.- Before 118 BC: pre-Roman times :...

. It is probable that his two sons, Dalmatius

Dalmatius

Flavius Dalmatius , also known as Dalmatius Caesar, was a Caesar of the Roman Empire, and member of the Constantinian dynasty.Dalmatius was son of another Flavius Dalmatius, censor, and nephew of Constantine I...

 and Hannibalianus

Hannibalianus

Flavius Hannibalianus was a member of the Constantinian dynasty, which ruled over the Roman Empire in the 4th century.Hannibalianus was the son of Flavius Dalmatius, and thus nephew of Constantine I...

, were born here. During the mid-320s, Flavius Dalmatius returned to Constantinople

Constantinople

Constantinople was the capital of the Roman, Eastern Roman, Byzantine, Latin, and Ottoman Empires. Throughout most of the Middle Ages, Constantinople was Europe's largest and wealthiest city.-Names:...

, to the court of his half-brother, and was appointed consul and censor in 333.

In Antioch

Antioch

Antioch on the Orontes was an ancient city on the eastern side of the Orontes River. It is near the modern city of Antakya, Turkey.Founded near the end of the 4th century BC by Seleucus I Nicator, one of Alexander the Great's generals, Antioch eventually rivaled Alexandria as the chief city of the...

, Flavius was responsible for the security of the eastern borders of the realm. During this period, he examined the case of bishop Athanasius of Alexandria

Athanasius of Alexandria

Athanasius of Alexandria [b. ca. – d. 2 May 373] is also given the titles St. Athanasius the Great, St. Athanasius I of Alexandria, St Athanasius the Confessor and St Athanasius the Apostolic. He was the 20th bishop of Alexandria. His long episcopate lasted 45 years Athanasius of Alexandria [b....

, the important opponent of the Arianism

Arianism

Arianism is the theological teaching attributed to Arius , a Christian presbyter from Alexandria, Egypt, concerning the relationship of the entities of the Trinity and the precise nature of the Son of God as being a subordinate entity to God the Father...

, who was accused of murder. In 334, Flavius suppressed the revolt of Calocaerus

Calocaerus

Calocaerus was a Roman usurper against Emperor Constantine I.Calocaerus was Magister pecoris camelorum in Cyprus. In 333–334 he revolted, proclaiming himself Emperor...

, who had proclaimed himself emperor in Cyprus

Cyprus

Cyprus , officially the Republic of Cyprus , is a Eurasian island country, member of the European Union, in the Eastern Mediterranean, east of Greece, south of Turkey, west of Syria and north of Egypt. It is the third largest island in the Mediterranean Sea.The earliest known human activity on the...

. In the following year he sent some soldiers to the council of Tyros to save the life of Athanasius.

His two sons were appointed of important offices under Constantine's administration, but Flavius Dalmatius and his sons were killed in the purges that followed the Emperor's death in May 337.