5. MAXIMA FAUSTINA, the third wile of Constantius, whom he married at Antioch in A. D. 360, a short period before his death. She gave birth to a posthumous daughter, who received the name of Flavia Maxima Constantia, and was eventually united to the emperor Gratian. We know nothing with regard to the family of this Faustina, but she appears again in history along with her child, as one of the supporters of the rebel Procopius, who made good use of the presence of the youthful princess to inflame the zeal of his soldiers by rekindling their enthusiasm for the glories of the house from which she sprung. (Ducange, Fam. Byz. p. 48, 59; Amm. Marc. 21.6.4, 15.6, 26.7. 10, 9.8.)
[W.R]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890