While the Austrian supply caravan had suffered many losses on their journey to the city of Milan due to the enemy ambush, Adelbrand had been marching towards the rally point of the Swiss forces within the city of Zurich. Until now, the Swiss had not tasted the power of steel and shot, and as such, they were fairly arrogant.
Aside from the Mercenaries who were wiped out during Berengar's rise to power, the Swiss had not become aware of the effectiveness of Berengar's weaponry and refused to believe that the Austrians had become superior to their mighty forces.
As such, there was a degree of arrogance among the Swiss armies gathered in Zurich as they witnessed the Austrian soldiers clad in their black and gold equipment arriving outside their city's borders.