Kings and Generals animated historical documentary series on the history of middle ages continues with a video on how the Imperial cities of the Holy Roman empire used wars and alliances to rise. We will talk about the Swabian League of Cities war, focusing on a battle fought by the imperial city of Reutlingen against Count Eberhard II of Württemberg. The central figure is Heinz, a Reutlingen craftsman who fought to defend the city’s privileges. In 1377, Reutlingen citizens launched a raid on Württemberg lands but were blocked at their city's gates by Eberhard's troops. The ensuing battle saw the citizens prevail, despite Heinz's death, leading to a larger political outcome where the Swabian cities established their autonomy. This conflict illustrates the tensions between imperial cities and territorial lords in the decentralized Holy Roman Empire, particularly regarding the emperor's attempts to pawn cities for financial gain.