In poking around microfilm shipped to the local LDS church, I found some of my most distant Italian ancestors so far.
My great-grandfather was Rosario Millonzi (1887-1971), his mother was Rosaria Salemi (1853-), her mother was Carmela Maggio (1824-), and her parents were Maestro Giuseppe Maggio (abt 1803-) and Providenza Tripi (abt 1808-). Those are my great-great-great-great-grandparents.
Here is a snapshot of Carmela Maggio's birth certificate from 1824.
Carmelo Maggio Atto di Nascita, Montemaggiore, 13 May 1824