Ambrose's Influence on the Roman Empire

In 375 Valentini in the first suddenly died, and his youngest son Valentini was elevated to the rank of Augustus. When the imperial court had left Milan in 374 heading east, it had been led by a domineering general who had been in office for more than a decade. When it returned, it was led by a four-year-old. The emergent leaders of the Milan court turned out to be the Empress Justina and the hugely popular and supremely capable new Bishop of Milan. This is interesting because Justina was a staunch Aryan while Ambrose was an Orthodox Nicene.