Hi...my surname's is Dal Savio :D
I'm Italian and i live in Vicenza,Veneto.
My parents was born here and my grandparents too...but i don't know about my ancestors!
I know that someone "Dal Savio" lives in Umbria and Campania but i don't know that..
http://www.gens.labo.net/it/cognomi/genera.html ...