sentences:  The last Prussian leader, Glappe of Warmians, was also hanged when his siege campaign on Brandenburg (now Ushakovo) was attacked from the rear.The last tribe standing were the Pogesanians, who made a surprise raid into Elbing and ambushed its garrison.In 1274 the Knights made a great expedition to avenge this raid, capturing the rebel headquarters at Heilsberg (Lidzbark Warmiński) and ending the uprising.