700 A.D. - 1400 (Walser -> Thönen)

The Walsers
One group of the Alemannen settled in what now is the Canton of Valias in southwestern Switzerland around 800-900 A.D. The northeast section of Valais (the beginning of the Rhöne river) is German speaking and is known in German as Oberwallis. Its inhabitants were known as Wallisers which, over time, became abbreviated to Walsers. Between the 12th and 15th centuries there were several migrations of Walsers out of Oberwallis:
1. south into northern Italy,
2. east into southeastern Switzerland, Lichtenstein, and the federal state of Vorarlberg in western Austria and
3. north into Bern Canton. You can still visit Walser villages in these areas today.

Here is a map showing the approximate current distribution of Walsers in the area of Switzerland (light shaded area) along with their origins of Oberwallis (blue oval).

Sources:
http://www.wir-walser.ch/english/index.html
http://www.walserland.org/walser.htm
http://utenti.wide.it/torriste/4414.php
Below are two maps that show the movements and current and past distribution of Walsers.
In this first map the blue areas are current Walser areas (Walserdeutsch heute). The pink and light blue are related linguistic areas and grey, abandoned Walser settlements.


This second map shows the Walserwanderungen or Walser migrations. The reddish arrows show known migration paths, the brownish assumed paths. Of particular interest to Teune.com is the path from Oberwallis into Berner Oberland (Bern Canton).
The Thöne
Here is an enlargement of the migration route from Oberwallis in Valais Canton north into Bern Canton described above. Also noted are two towns of Frutigen and Reutigen. The Thöne or Thönen family were Walsers who settled in these towns in Bern Canton near lake Thun. There are records of the Thöne family going back to the 1400s in this area.