Planck's son Erwin was arrested by the Gestapo following the attempted assassination of Hitler in the 20 July plot
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Planck's son Erwin was arrested by the Gestapo following the attempted assassination of Hitler in the 20 July plot
Text from Wikipedia, available under CC BY-SA 4.0.
Captured 2026-08-15 from Wikipedia. The archived copy is preserved so this citation survives link rot.