Gallienus

Gallienus was Roman Emperor with his father Valerian from 253 to 260 and alone from 260 to 268. He ruled during the Crisis of the Third Century that nearly caused the collapse of the empire. While he won a number of military victories, he was unable to prevent the secession of important provinces.

The exact birth date of Gallienus is unknown. The Greek chronicler John Malalas and the Epitome de Caesaribus report that he was about 50 years old at the time of his death, meaning he was born around 218. He was the son of emperor Valerian and Mariniana, who may have been of senatorial rank, possibly the daughter of Egnatius Victor Marinianus, and his brother was Valerianus Minor. Inscriptions on coins connect him with Falerii in Etruria, which may have been his birthplace it has yielded many inscriptions relating to his mothers family, the Egnatii. Gallienus married Cornelia Salonina about ten years before his accession to the throne. She was the mother of three princes Valerian II, who died in 258 Saloninus, who was named coemperor but was murdered in 260 by the army of general Postumus and Marinianus, who was killed in 268, shortly after his father was assassinated.

Source: Wikipedia