Egnatia Mariniana probably was the wife of Roman Emperor

Roman Emperor

The Roman emperor was the ruler of the Roman State during the imperial period . The Romans had no single term for the office although at any given time, a given title was associated with the emperor...

 Valerian

Valerian (emperor)

Valerian , also known as Valerian the Elder, was Roman Emperor from 253 to 260. He was taken captive by Persian king Shapur I after the Battle of Edessa, becoming the only Roman Emperor who was captured as a prisoner of war, resulting in wide-ranging instability across the Empire.-Origins and rise...

 and mother of Emperor Gallienus

Gallienus

Gallienus was Roman Emperor with his father Valerian from 253 to 260, and alone from 260 to 268. He took control of the Empire at a time when it was undergoing great crisis...

 and Valerianus Minor

Valerianus Minor

Valerianus Minor was the son of the Roman Emperor Valerian I. He was probably killed by usurpers, some time between the assassination of his father in 260 AD and that of his brother Gallienus in 268 AD. Not much else is known about him....

.
Several coins bearing the legend DIVAE MARINIANAE date back to the beginning of the reign of Valerian and Gallienus. Given the use of deifying the wife's dead before their husbands' accession to the throne, it is possible Mariniana died before 253

253

Year 253 was a common year starting on Saturday of the Julian calendar. At the time, it was known as the Year of the Consulship of Volusianus and Claudius...

.

It is possible that Egnatius Victor Marinianus

Egnatius Victor Marinianus

Egnatius Victor Marinianus was a Roman soldier and politician.He was Legatus of Arabia Petraea and Moesia Superior.He might have been the father of Egnatia Mariniana, wife of Valerianus and mother of Gallienus. Other sources, however, make her the daughter of Lucius Egnatius Victor, which makes him...

, Legatus

Legatus

A legatus was a general in the Roman army, equivalent to a modern general officer. Being of senatorial rank, his immediate superior was the dux, and he outranked all military tribunes...

 of Arabia Petraea

Arabia Petraea

Arabia Petraea, also called Provincia Arabia or simply Arabia, was a frontier province of the Roman Empire beginning in the 2nd century; it consisted of the former Nabataean kingdom in modern Jordan, southern modern Syria, the Sinai Peninsula and northwestern Saudi Arabia. Its capital was Petra...

 and Moesia Superior, was the father of Mariniana. If this is true, Mariniana is also the mother of Gallienus, whose name was Publius Licinius Egnatius Gallienus. Other sources, however, make her the daughter of Lucius Egnatius Victor

Lucius Egnatius Victor

Lucius Egnatius Victor was a Roman soldier and politician.He was a son of Aulus Egnatius Priscillianus and wife. His brother was Egnatius Proculus....

 and sister of Lucius Egnatius Victor Lollianus

Lucius Egnatius Victor Lollianus

Lucius Egnatius Victor Lollianus was a Roman soldier and politician.He was the son of Lucius Egnatius Victor and wife. His sister was Egnatia Mariniana, wife of Valerianus and mother of Gallienus....

, which makes him her uncle or perhaps brother. This is sustained by the fact that her great-great-great-great-great-nephew was named Flavius Avitus Marinianus.