<prompt> Translate the following text to EnglishSehemu ya kati ya bonde la Po ni sehemu ndogo tu ya nchi za Italia zilizoshindwa na Lombards walipovuka milima ya Alps kutoka Ulaya ya mashariki katika Enzi za Kati za mapema.  <response>: The central part of the Po valley is only a fraction of the Italian lands conquered by the Lombards when they crosed the Alps from eastern Europe in the early Middle Ages. 