Speaking to my brother's revised Ancestry results, it shows us as being roughly 25% Norwegian, which on its face is clearly wrong; however, two of our great-grandparents were from Jamtland, Sweden, which is fully encompassed in the 'Norwegian' region (albeit a bit peripherally) on Ancestry-the results make a lot more sense in that light. If your test had, say, Southeastern France, it would be easy to see that region encompassing part of Italy the way my ancestral part of Sweden was encompassed in Ancestry's 'Norway' category.