Bermatingen

Alemannian farmers settled in the region in the 5th-7th Centuries. The first mention of Bermatingen is in 779 as Permodingas, in which Ato and his wife Herosta donated the village to St Gall's Abbey in modern Switzerland. A family of knights of Bermatingen are mentioned beginning in 1166, and they constructed a castle at Burg Bermatingen to the northeast of the town. The last mention of the family is in 1303. The village later passed to the ministerialis family of the Schenk von Ittendorf, who sold their rights to the town to Salem Abbey in 1390.

In 1525 during the German Peasants' War, Eitelhans Ziegelmüller, one of the peasant commanders, took Bermatingen and used it as a base to attack towns, castles and monasteries in the surrounding region as far as Buchhorn (modern Friedrichshafen). The peasants marched to battle at Weingarten by late April where they made peace with the forces of the Swabian League under George III Truchsess of Waldburg-Zeil, agreeing to end the insurrection and returning property to its feudal owners in exchange for improved conditions and right to arbitration in disputes.

Bermatingen was devastated by a fire in 1590 and the Salem abbot Peter Müller directed the effort to reconstruct the town.

In the Reichsdeputationshauptschluss of 1803, in which the principalities of the ecclesiastic rulers were dispersed to the counts and princes of the empire, Bermatingen with the rest of the territory of Salem Abbey was disbursed to the Electorate of Baden.

Ahausen was first mentioned in a donation on 10 May 752 as Hahahusir to St Galls' Abbey. The village later passed to the Schenks von Ittendorf, Lindau Abbey, the Free City of Überlingen in 1434, Fahr Abbey in 1651, temporarily to Weingarten Abbey in 1693, and finally to the Prince-Bishopric of Constance later that year. The Prince-Bishopric administered Ahausen with neighbouring town Ittendorf (in Markdorf commune).

Ahausen passed to the Electorate of Baden in the Reichsdeputationshauptschluss in 1803.

Ahausen was subject to the heavy flooding of the Seefelder Aach for much of its history. The last catastrophic flood was in 1906 before the construction of a dam and corrective works for the flow of the river.