Louis then was quickly crowned at Aachen Cathedral by Archbishop Peter von Aspelt, while Frederick was forced to proceed to Bonn Minster for his coronation on 25 November 1314 by the Cologne archbishop Heinrich von Virneburg. Both tried for the support by the Imperial States; Frederick was enfeebled by the fact that he had been crowned at the wrong place and moreover struggled with the rebellious Swiss Confederacy in the Swabian home territories of the Habsburgs, suffering a crushing defeat at the 1315 Battle of Morgarten. He nevertheless was able to hold his ground against the Wittelsbach rival and after several years of bloody war, victory finally seemed to be within Frederick's grasp, as he was strongly supported by the forces of his younger brother Leopold I. However, Frederick's army was in the end completely beaten near Mühldorf on Ampfing Heath on 28 September 1322, and Frederick and 1,300 nobles from Austria and the allied Archbishopric of Salzburg were captured.