Following the Battle of Lobositz the Austrians withdrew, and tried to approach Pirna by a different route but they failed to make contact with the defenders. Despite a Saxon attempt to escape by crossing the River Elbe, it soon became apparent that their position was hopeless. On 14 October Rutowski concluded a capitulation with Frederick.
In total 18,000 troops surrendered. They were swiftly and forcibly incorporated into the Prussian forces, an act which caused widespread protest even from Prussians. Many of them later deserted and fought with the Austrians against the Prussian forces - with whole regiments changing sides at the Battle of Prague.