The German peasants made a Christian case for their personal freedom, appealing to Martin Luther for pastoral assistance, and he called for them to be butchered.

Bateza had cited his scholarly paper on the matter and I've uploaded it here.

https://www.scribd.com/document/733786947/Anthony-M-Bateza-Reconciling-Rapacious-Wolves-and-Misguided-Sheep-Law-and-Responsibility-in-Martin-Luther-s-Response-to-the-German-Peasants-War