Ingolstadt (ĭngˈgôlshtät) [key], city (1994 pop. 109,660), Bavaria, S central Germany, on the Danube River. It is a commercial and industrial center. Manufactures include engines, machinery, refined oil, and motor vehicles. Major oil pipelines link Ingolstadt to Marseilles, France, and the Italian cities of Genoa and Trieste. Chartered in 1250, Ingolstadt was besieged (1632) by Gustavus II of Sweden during the Thirty Years War. The Univ. of Ingolstadt (founded 1472 and removed to Landshut in 1802 and then to Munich in 1826) was a stronghold of the Counter Reformation; Joseph von Eck taught at the university from 1510 to 1543. The city's noteworthy buildings include the splendid Gothic Liebfrauenmünster (15th–16th cent.) and other churches.