Friedrich "Fritz" Hartnagel (February 4, 1917 – April 29, 2001) was a lawyer and soldier of the Wehrmacht during World War II.
[2] Under Scholl's influence and after experiences on the front (including in the Battle of Stalingrad), Hartnagel changed from an enthusiastic soldier to an opponent of war and Nazi dictatorship.
When he learned of the arrest, he immediately checked himself out of the hospital in occupied Poland he was in (he suffered frostbite in Russia, which had led to a partial amputation of his hand) and raced to Munich.
After the remaining members of the Scholl family were put into Sippenhaft (kinship arrest), Hartnagel appealed for clemency for them.
[1] In 1946, Hartnagel began law studies at the Ludwig Maximilian University in Munich (the same college Sophie Scholl had gone to).