Flavius Julius Constantius, better known as Constantius II, was appointed by his father Constantine the Great, as emperor subordinate to an augustus.
In 337 AD, he assumed power in the eastern part of the Empire, threatened by the Sassanids and internal divisions. Like his father, he played a fundamental role in the spread of Christianity.
Some literary works described him in the military clashes against the Eastern enemies of the Empire, whose borders he managed to strengthen.