Bombing of Rome in World War II

Rome, along with Vatican City, was bombed several times during 1943 and 1944, primarily by Allied and to a smaller degree by Axis aircraft, before the city was liberated by the Allies on June 4, 1944. Pope Pius XII was initially unsuccessful in attempting to have Rome declared an open city, through negotiations with U.S. President Franklin D. Roosevelt via Archbishop (later Cardinal) Francis Spellman.

Source: Wikipedia — Bombing of Rome in World War II (CC BY-SA 4.0)