Carpeneto  Carpeneto is a "comune" (municipality) in the Province of Alessandria in the Italian region Piedmont, located about southeast of Turin and about south of Alessandria. Carpeneto borders the following municipalities: Montaldo Bormida, Predosa, Rocca Grimalda, Sezzadio, and Trisobbio. The Baroque church of San Giorgio is a main Roman Catholic parish.