Gugler

De Coucy gathered a mercenary army of such knights to enforce his inheritance rights versus his Habsburg relatives.

There is disagreement about the size of the army De Coucy put together, Tuchman estimates them to be a force of about 10,000 men, a contemporary Alsatian document names 16,000, and other writings place the numbers much higher.

[3] The pillage by the roaming Guglers affected the western part of the Aargau, where the towns of Fridau and Altreu were completely destroyed.

[1] The local populace organized to strike back and, although outnumbered, were able inflict significant damage in a series of night attacks, first defeating the Guglers at Buttisholz on Christmas Eve.

Enguerrand compromised with Albert III in 1387 and received domain over Büren and part of the town of Nidau which he lost after only one year to the citizen army of Bern and Solothurn.

They confirmed, after their previous successes at the battles of Morgarten (1315) and Laupen (1329), that well organized armies of common men could defeat knightly armour, a feat they would repeat a decade later at Sempach on their route to Swiss independence.