After the death of Julius Nepos in AD 480, the Empire was formally reunited under the rule of a single throne, under Emperor Zeno in Constantinople. Dalmatia continued as a Roman possession, ruled from Constantinople, and was thus part of the state referred to in historiography as the Byzantine Empire (although historically it continued to be known as the "Roman Empire" throughout its existence). The collapse of the Western Empire left this region subject to Gothic rulers, Odoacer and Theodoric the Great, from 476 to 535, when it was added by Justinian I to the Eastern (Byzantine) Empire.