Caesar von Hofacker was born in Germany in 1896. Trained as a lawyer he held a senior position in the United Steel Works before joining the German Army in 1939.

Hofacker was on the staff of Carl Stulpnagel, the Military Governor of France. Hofacker was related to Claus von Stauffenberg and in 1943 began attempts to recruit senior generals in the plot to overthrow Adolf Hitler.

Arrested by the Gestapo after the failed July Plot, he was tortured and gave the names of others involved in the conspiracy, including that of Erwin Rommel.

Caesar von Hofacker was executed on 20th December, 1944.