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Piedmont, Aosta Valley, Lombardy, Trentino Alto Adige, Venetia and Friul are for sure more Nordic than Iberia. With Liguria, Tuscany, and Emilia the same I think. With the rest of the Peninsula (and both Sardinia and Sicily) almost equal. "White" is not a good term though: if you mean the American meaning only Northern Italy (from the Po river) is white (above the 45th parallel north).
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