Marinianus was Roman consul in the year 268, under Emperor Gallienus.
[1] He was related to the Egnatia gens and has been speculated to be the cousin, son or nephew of Emperor Gallienus.
[2] Marinianus and Valerianus Minor (Gallienus' brother), were killed during the autumn of 268 in a purge of Gallienus' partisans.
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