<prompt> Translate the following text to EnglishKatika karne ya nane, Byzantium ilikuwa na nguvu nyingi kuliko Lombards, ambao walikuwa wamevamia Italia mwaka wa 568 na kuanzisha mji mkuu wao huko Pavia miaka minne baadaye.  <response>: By the eighth century, the Byzantines held the balance of power with the Lombards a Germanic tribe, who had invaded Italy in 568 and set up their capital at Pavia four years later. 