The Battle of Sörenberg was fought in 1380, between the Entlebuch (at the time subject to the House of Habsburg) and Obwalden (a canton of the early Swiss Confederacy).

As recorded by Renward Cysat in c. 1600,[1] the cattle raid took place in 1374, and the tensions between Entlebuch and Obwalden continued for several years.

Windtrüeb, the tenant of the neighboring Blattalp, is said to have pursued the invaders, catching up with them at Mörhalp, back in Obwalden territory beyond the Glaubenbühl Pass.

In this legend[citation needed] Windtrüeb was assassinated by the Obwalden party a few years later, in 1384, at Steinibach, halfway between Flühli and Schüpfheim.

In the aftermath of the battle, the Entlebuch sought an alliance with Lucerne, and became a subject territory of that city, and by extension part of the Swiss Confederacy, in 1385.