Swabia, (German: Schwaben), a historic region of Germany. At its greatest extent, Swabia comprised most of what is now the state of Baden-Württemberg and part of Bavaria; it also included the eastern half of what is now Switzerland. Augsburg and Ulm are the region's chief cities.
By about 1300 Swabia's leading towns had become imperial free cities of the Holy Roman Empire. In 1331 many of them united in the Swabian League to preserve peace. The league was renewed several times and lasted for about 200 years. After it was dissolved in 1534, Swabia was gradually absorbed by surrounding domains.