Industrial city in Lower Saxony, West Germany; 115 km/71 mi W of Hanover; population (1988) 154,000. Industries include engineering, iron, steel, textiles, clothing, paper, and food processing. Before World War II, Osnabruck contained fine examples of Gothic and Renaissance architecture. Osnabruck bishopric was founded by Charlemagne 783. The Treaty of Westphalia was signed at Osnabruck and Munster 1648, ending the Thirty Years' War. A type of rough fabric, osnaburg, was originally made here.