Question: What plot did Kurt Freiherr von Plettenberg and Claus von Stauffenberg work together on?
Sentence (from "Adam von Trott zu Solz"): Together with Claus von Stauffenberg he conspired in the 20 July plot, and was supposed to be appointed Secretary of State in the Foreign Office and lead negotiator with the western allies if they had succeeded.
Relevant evidence: No