Montluc was liberated on 24 August 1944 by FFI troops, when resistance leader Colonel Köenig, profiting from the chaos reigning in Lyon at the time, entered the prison in a stolen German Army car disguised as a Gestapo officer and persuaded the Commandant to free the prisoners, saying that the order had come from the Gestapo Commander in Lyon, Klaus Barbie.

In 1947, Montluc became a civil prison once again, finally closing in 1997, though the