Ewald-Heinrich von Kleist, the last surviving member of the July 20, 1944, plot to kill Adolf Hitler, died earlier this month at age 90.

Von Kleist had joined the Wehrmacht as an infantry officer in 1940 at age 18, but he did so out of an allegiance to country, not to the Führer. He came from a long line of Prussian landowners who had served the state for centuries in high-ranking military and administrative positions, according to the Associated Press.

However, von Kleist’s father, a Christian, conservative and monarchist, resisted Hitler, and the Nazi flag never flew from the Kleist castle in Pomerania nor was the Nazi salute ever given there, according to The Economist.

As the war progressed and its true nature was revealed to the younger von Kleist, he grew increasing troubled. Stationed on the Eastern Front, he saw some of the conflict’s most brutal action and was…