In the 6th century the city was subtracted from the Goths by the Byzantine Empire during Justinian’s attempt to reform the Roman Empire.
It later becomes an autonomous duchy, under the jurisdiction of Byzantium.
Thanks to the foresight of its leaders and bishops, Naples resisted the conquests of the Lombards, Franks and Saracens. It was one of the last territories to fall into the hands of the Normans in 1137. They founded the Kingdom of Sicily whose capital was Palermo.
The city then passed to the power of the suèves with Frederic II who founded the University there in 1224, the second of the italic peninsula.
