A considerable. number of medals are extant in each of the three metals, all of which exhibit upon the obverse a veiled head, and the words DIVAE MARINIANAE, and generally upon the reverse CONSECRATIO. One, however, bears the date of the 15th year of the colony of Viminacium, which proves that it must have been struck A. D. 254. This princess therefore belongs to the reign of Valerian, but we cannot tell whether she was the wife, the sister, or the daughter of that emperor. We know that he was married at least twice, since Trebellius Pollio informs us that Gallienus and Valerianus, jun. were only halfbrothers, and since it is probable that the mother of the former was named Galliena, the latter may have been the child of Mariana. This, however, is a mere conjecture. Whoever she may have been, it is at all events certain that she was dead at least four years before the Persian expedition, a