Singidunum - Byzantine Rule and Migration Period

Byzantine Rule and Migration Period

Further information: Slavic invasion of the Balkans

In 395, upon the death of Theodosius I, the Roman Empire was split into two, with Singidunum lying on the northwestern border of the Eastern Roman Empire (later to become the Byzantine Empire). Moesia and Illyricum suffered devastating raids by the successive invasions of the Huns, Ostrogoths, Gepids, Sarmatians, Avars, and Slavs. Singidunum fell to the Huns in 441, who razed the city and fortress, selling its Roman inhabitants into indentured servitude. Over the next two hundred years, the city passed hands several times: the Romans reclaimed the city after the fall of the Hun confederation in 454, but the Sarmatians conquered the city shortly thereafter. In 470 the Ostrogoths seized the city around, expelling the Sarmatians. The city was later invaded by Gepids (488), but the Ostrogoths recaptured it in 504. Six years later the Eastern Roman Empire reclaimed the city according to a peace treaty.

Byzantine emperor Justinian I rebuilt Singidunum in 535, restoring the fortress and city to its former military importance. The city saw a brief peaceful period of about fifty years, but was then sacked with the arrival of the Avars in 584. During Maurice's Balkan campaigns, Singidunum served as a base of operations, but it was lost again in the early half of the 7th century when the Avars sacked and burned Singidunum to the ground. Around 630, the Slavs settled in the area and in Singidunum, coordinated by a Roman fortress commander. By this time, however, the city had lost its importance as a border fortification and was largely ignored by the Slavs, who dominated the area.