The town was almost completely destroyed in 1634 during the Thirty Years' War, when Imperial and Spanish troops sacked the city after the Battle of Nördlingen. Fires raged for more than a week, and most of Waiblingen's citizens were killed or had to flee. Rebuilding only began four years after this catastrophe; the existing old central part of the town dates back to the years between 1640 and 1700. Its fortifications are now well restored.