Flavius Dalmatius also known as Dalmatius Caesar, was a Caesar

Caesar (title)

Caesar is a title of imperial character. It derives from the cognomen of Julius Caesar, the Roman dictator...

 (335–337) of 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....

, and 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...

.

Dalmatius was son of another Flavius Dalmatius

Flavius Dalmatius

Flavius Dalmatius , also known as Dalmatius the Censor, was a censor , and a member of the Constantinian dynasty, which ruled over the Roman Empire at the beginning of the 4th century....

, 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....

, and nephew of Constantine I

Constantine I

Constantine the Great , also known as Constantine I or Saint Constantine, was Roman Emperor from 306 to 337. Well known for being the first Roman emperor to convert to Christianity, Constantine and co-Emperor Licinius issued the Edict of Milan in 313, which proclaimed religious tolerance of all...

. Dalmatius and his brother 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 educated at Tolosa (Toulouse

Toulouse

Toulouse is a city in the Haute-Garonne department in southwestern FranceIt lies on the banks of the River Garonne, 590 km away from Paris and half-way between the Atlantic Ocean and the Mediterranean Sea...

) by rhetor Exuperius

Exuperius

Saint Exuperius was Bishop of Toulouse at the beginning of the 5th century.His place and date of birth are unknown. Upon succeeding Saint Sylvius as bishop of Toulouse, he completed the Basilica of St. Sernin, begun by his predecessor...

.
On 19 September 335, he was raised to the rank of Caesar, with the control of Thracia

Thracia

Thracia is a Web-Based computer game created and developed by an exclusively Romanian team, part of Infotrend Consulting, and launched in 2009. At the time, it was the first endeavor of its kind. All browser games were text based, made up mostly of static content...

, Achaea

Achaea (Roman province)

Achaea, or Achaia, was a province of the Roman Empire, consisting of the Peloponnese, eastern Central Greece and parts of Thessaly. It bordered on the north by the provinces of Epirus vetus and Macedonia...

 and Macedonia

Macedonia (Roman province)

The Roman province of Macedonia was officially established in 146 BC, after the Roman general Quintus Caecilius Metellus defeated Andriscus of Macedon, the last Ancient King of Macedon in 148 BC, and after the four client republics established by Rome in the region were dissolved...

. Dalmatius died in late summer 337, killed by his own soldiers. It is possible that his death was related to the purge that hit the imperial family at the death of Constantine, and organized by Constantius II

Constantius II

Constantius II , was Roman Emperor from 337 to 361. The second son of Constantine I and Fausta, he ascended to the throne with his brothers Constantine II and Constans upon their father's death....

with the aim of removing any possible claimant to the throne.