The Battle of Linz-Urfahr on 17 May 1809 saw soldiers from the Austrian Empire fighting against troops from two of Emperor Napoleon's allies, the Kingdom of Württemberg and the Kingdom of Saxony. An Austrian corps led by Feldzeugmeister Johann Kollowrat attacked General of Division Dominique Vandamme's Württembergers who held a fortified bridgehead on the north bank of the Danube opposite the city of Linz. As the combat got underway, Saxons led by Marshal Jean-Baptiste Bernadotte began reinforcing the defenders. This prompted Kollowrat to order a retreat, which was followed up by Napoleon's German allies.