(V) ascended the papal chair in 885. He negotiated with the emperor Basil of Constantinople and his son Leo for a restoration of the peace between the Greek and Roman churches which had been disturbed by Photius (q.v.). Stephen demanded that all clergymen consecrated by Photius should be deposed, and that those whom the latter had banished or excommunicated should be restored; and Leo conformed to the requirement. The pope was also able to maintain his position against Charles the Fat, who sought to depose him because he had not obtained secular confirmation. He crowned the duke Guido of Spoleto as emperor, and died in 891.