On the 21st or perhaps the 20th of May in 1525, the peasant rebel Jakob Rohrbach — more commonly known as Jäcklein (“Little Jack”) Rohrbach — was chained to a stake and burned alive as the nobility celebrated its victory in the German Peasants’ War. Rohrbach was by history’s acclamation the most bloody-minded of the peasant revolutionaries — for Jakob perhaps had learned the lesson of the Jacquerie that rebels against the lords must vanquish or perish. (Jakob Rohrbach was literate.) When the peasantry rose to shake Germany, Rohrbach was elected a leader in the environs of Weinsberg, in Baden-Wuerttemberg....