Glatz was taken by the Austrians on 29 July, followed shortly by Liegnitz and Parchwitz, and the Austrian armies of Daun and Lacy returned to join with Laudon's force in Lower Silesia. The Prussians under Frederick and Prince Henry attempted to unite and seek a decisive engagement, while Daun moved to attack Frederick's force with overwhelming numbers. Laudon's corps, moving ahead of Daun's main army, attacked Frederick's position near Liegnitz on 15 August. The resulting Battle of Liegnitz ended in a Prussian victory, with the Prussians defeating Laudon before Daun's larger force could arrive to support him. This reversal disrupted the Austrians' manoeuvres and restored Prussian control of Lower Silesia, as Daun moved his army back into Saxony.