Mussolini’s government accused the United States of having dropped the bombs, and the fascist press accused the Allies.
In a 2010 book, author Augusto Ferrara published documentation which showed that immediately following the bombing, the Secretariat of State convened an inquiry into the source of the attack, sending letters requesting explanation to Germany, the U.S., and Great Britain. Blame for the raid was denied by all three.
But the investigation uncovered that the bombs were dropped from a S.79 aircraft supplied by the Italian Social Republic, which had departed from the airport of Viterbo, about 50 miles north of Rome.
Documentation in the Italian-language book, titled “1943. Bombe sul Vaticano,” shows the bombing was ordered by Roberto Farinacci, a fascist politician and advisor to Mussolini who wanted to destroy Vatican Radio because he thought it was transmitting military information to the “enemy.”
The Sunday immediately following the attack, Venerable Pius XII addressed people in St. Peter’s Square, explaining what happened and that an investigation was underway. But when it was revealed that it was likely done by a fascist leader, he asked for it to be kept out of the newspapers, since Italy was still at war.
After the Nov. 5 raid, the Vatican was hit once again, on March 1, 1944, when a British plane accidentally dropped its bombs too nearby and hit the Vatican wall, killing a Vatican workman and injuring a religious, as well as shattering the windows of the building of the Congregation for the Doctrine of the Faith.
In May 1943, after the first bombs were dropped on Rome by Allied forces, Ven. Pius XII had written to U.S. President Franklin Roosevelt asking him as much as possible to spare Rome “further pain and devastation” and to keep Rome’s treasured shrines “from irreparable ruin.”
Roosevelt replied June 16, 1943, saying, “attacks against Italy are limited, to the extent humanly possible, to military objectives.”
“In the event it should be found necessary for Allied planes to operate over Rome, our aviators are thoroughly informed as to the location of the Vatican and have been specifically instructed to prevent bombs from falling within Vatican City.”
Despite this, heavy raids were carried out on Rome before it was captured by the Allies June 4, 1944. Among these was the devastating bombing of July 19, 1943, in which thousands of civilians were killed.