Ewald-Heinrich von Kleist, the last surviving participant in the main plot to kill Adolf Hitler, has died aged 90.

Von Kleist, who once volunteered to wear a suicide vest to assassinate the Nazi dictator, died at his home in Munich on Friday, said his wife, Gundula.

Von Kleist was born on 10 July 1922, on his family estate Schmenzin in Pomerania, in an area of north-eastern Germany that is now part of Poland.

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....