The elder von Kleist famously traveled to England in 1938, the year before World War II broke out, to try and determine whether other Western nations would support a coup attempt against Hitler, but failed to get the British government to change its policy of appeasement.

NPR: Last Survivor Of Plot To Kill Hitler Dies At 90

British prime minister from 1937, he followed a policy of appeasement with Nazi Germany in the years before World War II, negotiating the Munich agreement with Adolph Hitler in 1938.

CNN: Saturday,