On 15 November 1315, Leopold of Austria led a large army of knights to crush the rebellious confederates, planning a surprise attack from the south via Lake Aegeri and the Morgarten pass, and counting on a complete victory over the rebellious peasants. The chronicle of Johannes von Winterthur concerning the battle puts the Austrian forces at 20,000, though that number is certainly inflated. Another account says that there were 9,000 men in the Austrian army, while Delbrück holds that the Austrian army was only 2,000-3,000 but mostly knights.