The Battle of St. Jakob an der Sihl was a battle of the Old Zürich War that occurred on July 22, 1443, resulting in a defeat for Zürich. The battle took place outside the gates of Zürich, beyond the Sihl (today's Aussersihl district). The troops of Zürich, with Habsburg reinforcements, met the attacking confederates on the Sihlfeld north of St. Jakob on July 21. The confederation army, which numbered about 6,000 men, was met by Zürich's disorganized troops and about 500 Austrian knights. The following morning the confederation army attacked the front and then the left flank of the army. Zürich's forces were pushed back and had to escape across the Sihl into the city. The confederates did not have the means to lay siege to the city and withdrew. The defeat of Zürich was thus not decisive, a