
Byzantine Italy consisted of various parts of theItalian peninsula that were under the control of theByzantine Empire after theGothic War (535–554) and down to the end of the 11th century. There was a brief attempt at Byzantine reconquest in the middle of the 12th century.[1]
Chronologically, it refers to:

Several states avoided conquest by theLombards orFranks and maintained nominal Byzantine allegiance even after the Byzantine presence in Italy came to an end:
Likewise, the islands ofSardinia andSicily maintained Byzantine allegiance in this period: