 In the German Peasants' War in 1525, many farmers from Dielheim fought on the side of the so-called Mob of Malsch ("Malscher Haufens") against the oppression of the rule of the prince-bishops.After the defeat of the revolt, the village had to suffer harsh penalties.In the Thirty Years' War, Dielheim was almost completely destroyed by the troops of the Electorate of the Palatinate of the Rhine, the Holy Roman Empire, and Sweden.