After Constantine's death in 337, the imperial residence in Mediana was used by several other emperors, either as a place of rest on their long journeys or during preparations for war. Thus, Constantine's sons, Constantius II and Constans, stayed in Naissus in the winter of 340, for they signed an edict there. Later on, Constans used it as a temporary residence. According to the Hieronimus' Chronicles, after Vetranio, commander of the Danubian army, had been proclaimed emperor in Sirmium, he surrendered the insignia of imperial power to Constantius II in Naissus, doubtless at the imperial villa, in 350.