„The Von Kleist family was a long line of Prussian landowners, who had served the state for centuries in high-ranking military and administrative positions.
Von Kleist’s father, Ewald von Kleist, was an opponent of Hitler even before he came to power, and was arrested many times after the Nazi dictator took control in 1933. The elder Von Kleist famously travelled to England in 1938, the year before the second world war 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.“

„Von Kleist had been chosen as the officer to model a new uniform for Hitler, and Von Stauffenberg proposed that he wear a suicide vest underneath, and detonate it when he stood next to the dictator.
Years later, Von Kleist remembered explaining the suicide plot to his father, who paused only briefly before telling his 22-year-old son: “Yes, you have to do this.”
“Fathers love their sons and mine certainly did, and I had been quite sure he would say no,” Von Kleist recalled. “But, as always, I had underestimated him.”“

https://www.theguardian.com/world/2013/mar/12/hitler-assassination-plotter-von-kleist