Flavius Claudius Constantius Gallus, full name Flavius Claudius Constantius Gallus, was a member of the Constantinus dynasty and Caesar of the Eastern Roman Empire. He was born about 325 or 326 in the Italian town of Massa Veternensis (now Massa). However, a tragic fate awaited him: he was executed in Pola in 354 due to his alleged official excesses. Gallus' life took place at the beginning of the 4th century, when the Roman Empire was undergoing profound changes. His uncle, Constantine I, abolished Diocletian's tetrarchy and united the empire under one person. The new capital, Constantinople, was equidistant from the threatened borders, including the Germanic threat along the Danube and the Persian threat along the Euphrates. Gallus' tragic fate began during the extermination of his family. The sons of Constantine I organized bloody purges within the family and divided the empire. Gallus was so sickly in his youth that they thought he was not fit to live to adulthood. His father, II. Constantius, later placed him in a showcase office, but without actual power. Finally, he was put on trial and executed. Despite the tragic end of his life, Gallus' memory remained in the history of the Roman Empire, and he was one of the turning points of the imperial dynasty.

During the reign of Emperor Constantius Gallus (351-354), the coinage was not very abundant, and the types of minting were not very varied. The material of the coins is gold, silver, bronze, the denominations are solidus, aureus, denarius, follis. On the front, there is a portrait of Constantius Gallus, with an inscription (eg DN CONSTANTIVS GALLVS PF AVG.), on the reverse side various motifs, e.g. Victoria, Virtus, Mars, Pax, Concordia, Constantinopolis can be seen. The style of the early coins is somewhat barbaric, later it becomes more refined. The weight of the solidi and aureus follows the Constantinian standard. below those of its predecessors. Important mint types: Victoria type: rising figure of the goddess Victoria, symbolizing the victory of the empire. Virtus type: Goddess Virtus in armor, holding spear and shield, symbolizing the courage and strength of the emperor. Mars type: Mars god in arms, radiating military power. Pax type: goddess Pax holding an olive branch and caduceus, symbolizing peace. Concordia type: goddess Concordia clasping two hands, symbolizing the unity of the empire. Constantinopolis type: personification of the city of Constantinopolis, glorifying the new capital of the empire. Coins are often of lower quality than the contemporary coins of emperors. The rarity of bronze coins indicates the economic difficulties of the empire.