Fortress Ingolstadt-Zwischenwerk Nr. 1 Gerolfing (Werk 191)

The Ingolstadt State Fortress, an installation of the Bavarian Army, underwent several expansion phases, starting with the reinforcement of medieval fortifications. From 1537, Duke Wilhelm IV had Ingolstadt developed into a state fortress. After the Thirty Years' War, the facilities were strengthened between 1654 and 1662 under Christoph Heidemann. The fortress played a role in the War of the Spanish Succession in 1704 and the War of the Austrian Succession in 1745, but was surrendered without a fight to Napoleon's troops in 1800 and subsequently destroyed.