Eutropia was the daughter of Emperor 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 of 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 therefore half-sister of Emperor 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...

.

Biography

She married Virius Nepotianus and bore him a son, Nepotianus

Nepotianus

Iulius Nepotianus , commonly known in English as Nepotian, was a member of the Constantinian dynasty who reigned as a short-lived usurper of the Roman Empire...

, who later became a short-lived Roman usurper

Roman usurper

Usurpers are individuals or groups of individuals who obtain and maintain the power or rights of another by force and without legal authority. Usurpation was endemic during roman imperial era, especially from the crisis of the third century onwards, when political instability became the rule.The...

, when Magnentius

Magnentius

Flavius Magnus Magnentius was a usurper of the Roman Empire .-Early life and career:...

  was proclaimed emperor in 350; after a period of twenty-eight days in early June 350, Nepotianus was killed, and probably this led to the execution of Eutropia by order of Magnentius' magister officiorum

Magister officiorum

The magister officiorum was one of the most senior administrative officials in the late Roman Empire and the early centuries of the Byzantine Empire...

Marcellinus

Marcellinus (magister officiorum)

Marcellinus was a Roman Empire officer under Roman Emperor Constans and usurper Magnentius.Marcellinus was comes rerum privatarum of Emperor Constans. He played a major role in the election of Magnentius to the rank of Augustus at Augustodunum, on January 18, 350...

. Virius Nepotianus was consul in 336.