Walliser in the context of "Walser language"

Walser German (German: Walserdeutsch) and Walliser German (Walliserdeutsch, locally Wallisertiitsch) are a group of Highest Alemannic dialects spoken in parts of Switzerland (Valais, Ticino, Grisons), Italy (Piedmont, Aosta Valley), Liechtenstein (Triesenberg, Planken), and Austria (Vorarlberg).

Usage of the terms Walser and Walliser has come to reflect a difference of geography, rather than language. The term Walser refers to those speakers whose ancestors migrated into other Alpine valleys in medieval times, whereas Walliser refers only to a speaker from Upper Valais – that is, the upper Rhone valley. In a series of migrations during the Late Middle Ages, people migrated out of the Upper Valais, across the higher valleys of the Alps.