In the beginning, Bonhoeffer's imprisonement in Berlin-Tegel was bearable, with some security guards secretly helping him. From the letters that Bonhoeffer wrote to his family, fiancée, and his friend, an anthology, Letters and Papers from Prison (Widerstand und Ergebung), was compiled after the war.

After the failed assassination of Hitler on July 20, 1944 and intensified investigations against the resistance, the situation became increasingly more difficult. Bonhoeffer's brother, Klaus, and his brother-in-law Rüdiger Schleicher were likewise imprisoned and executed in April 1945. In February 1945, Dietrich Bonhoeffer and other members of the resistance were brought to the Buchenwald Concentration Camp. At the beginning of April 1945, in the final weeks of the war, they were again transferred to the Flossenbürg Concentration Camp.

On April 9, 1945, after a trial by summary court martial, Dietrich Bonhoeffer, Admiral Canaris, and five other men were hanged in the detention yard of the Flossenbürg Concentration Camp.

His family only learned of his death months later.

Picture: Gütersloher Verlagshaus