There's a map I've seen that shows four separate provinces for the Alpes, including Alpes Poeninae and Alpes Graiae. However, everywhere else I've looked, I haven't been able to find any information that corroborates the map. Everything else has seemed to imply that they were the same province.
My question is: was there ever a point where they were separate provinces like the map shows? What were the years of their existence? Or is the map incorrect and were they always the same province?