Are you sure I'm wrong?  I spoke with a professor who is a linquistic expert, and she said that Nones (from the Val di Non) is a Ladin language.  Wouldn't that make sense that there is a language of this region that predates the Germans coming in, or the introduction of Italian as the national language of Italy?  From my own experience, what they call Nones, or Ladin, or Romansch all are very similar.  Of course, not exactly the same, but you know as well as I do that these old language change just going from one valley to another valley.