As a neutral territory, Vatican City was largely spared from major bombing during World War II, while Rome was the target of raids by both Allied and Axis forces during Nazi Germany's occupation of the city.
Except for one autumn night, around 8 p.m. on Nov. 5, 1943, when an unidentified plane dropped five bombs on the Vatican — four of which detonated — one narrowly missing St. Peter's Basilica.
Luckily, no one was killed, but who dropped the bombs and why has it been shrouded in mystery ever since, with one historian offering a likely theory only in 2010?
What happened
Longtime Vatican archivist and World War II researcher Johan Ickx spoke to EWTN News about the event and other aspects of life at the Vatican during World War II.
Rome at the time was part of the Italian Social Republic, a German puppet state led by Benito Mussolini, and the Nazis had seized control of the capital nearly two months prior.
Ickx said it's difficult to know exactly what life was like in the Vatican during that period. There were certainly fewer personnel, who were all priests, in the Secretariat of State.
And we know, the war historian said, that at a certain point, Pope Pius XII ordered the buildings not to be heated anymore, "as a sign of solidarity with the people outside" of Vatican City.
"We know also that there were people hidden in the Vatican during the war, and not a few," he added. "These people were put at work in some way."
Earlier that year, after the first Allied attacks on the city of Rome, the pope had written to U.S. President Franklin D. Roosevelt to ask Allied forces to spare the city "further pain and devastation" and to keep its treasured sites "from irreparable ruin."
Roosevelt replied on 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," the president wrote.
Despite this promise, heavy raids were carried out on Rome before it was captured by the Allies on June 4, 1944. Among these was the devastating bombing of July 19, 1943, in which thousands of civilians were killed.
The same day, after the raid ended, Pius XII and the future Pope Paul VI (then Secretariat of State Archbishop Giovanni Montini) traveled to the affected area, the San Lorenzo neighborhood, to hand out money to the victims gathered in front of the Church of San Lorenzo Fuori le Mura.
"A few days [before the bombs were dropped on the Vatican] bombs were dropped on Trastevere in Rome," Ickx recalled. "But the Vatican, that was something new. And it was also an international shock, really, because just until that day, one could say that the Vatican was saved from any military action."
The bombs hit the governatorate — the government offices of the city state — the mosaic laboratory, and offices of officials of the Roman Curia, causing considerable damage, as visible in video footage from the period.
The evening the bombs fell, Archbishop Domenico Tardini, at the time head of the Secretariat of State's section for relations with states, "was not in [his] office working and was just going up through the corridor to his office. Now, it was providential luck. If not, he would have been hurt," Ickx said.
Some people were injured, but it was fortunate no one was killed by the bombs, which weighed 150 kilograms (330 pounds) each, Ickx noted. One of them detonated close enough to the Vatican basilica to blow out one of its back windows.
Pope Pius XII, reacting privately after the bombing, said: "There was more respect in Cairo, as the religious center of Islam, than in Rome. And more concretely, we are struck by the need to recognize... that there no longer exists, I do not say Christian conscience, but even the minimum of human understanding and a sense of loyalty in acting that should be enough to leave the successor of St. Peter in the narrow strip of land that still remains."
Who did it
"The Vatican, of course, starts investigating immediately," said Ickx, director of the historical archives of the section for relations with states and international organizations of the Secretariat of State.
The Secretariat of State began interviewing people about what they saw and heard. On a fragment of one of the bombs, they could make out just the final three letters of a name, "lli," so one Vatican employee was tasked with making a list of all the arms and bomb producers that matched. But after making the list, there were still dozens that ended in "lli."
"The other part of the investigation," the historian noted, "is who did it? What plane was coming over? Was it a British one? Was it an American one, or was it an Italian or a German one? And the worst case would have been, of course, a German one … [because] Rome was in that moment … occupied by the Germans."
"The fear in the Vatican was very high that Germans could have entered also the Vatican to take over everything and to … take the pope away and bring him elsewhere," Ickx said.
The Secretariat of State questioned the United States, Britain, Italy, and Germany, who all denied involvement.
What followed was uncertainty, the historian explained.
"And the uncertainty is that what makes journalists happy," he said, because "they can create history, they can create news, they can create scoops."
He described one of the laughable "scoops" printed in an Italian newspaper a few days after the incident, with the headline "Stalin thanks Churchill for dropping the bombs in the Vatican."
"Now it makes us laugh, because all of a sudden the Russians are also involved in the case," Ickx said. "We see that is the normal war propaganda which is doing its work at that moment."
For the Vatican, the mystery was "never solved."
Only years later did a plausible theory emerge, proposed by the author Augusto Ferrara in his 2010 book "1943. Bombe sul Vaticano" ("1943. Bombs on the Vatican").
In that book, Ferrara's investigation uncovered that the bombs were probably 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.
He also wrote that the attack was ordered by Roberto Farinacci, a fascist politician and adviser to Mussolini who wanted to destroy Vatican Radio, because he thought it was transmitting military information to the "enemy."
Ickx called that "a plausible explanation."
For four months, the Vatican was spared any major destruction, until March 1, 1944, when a British plane missed the objective of its bombardment and hit the Vatican wall.
This time, tragically, the incident did cause loss of life: a Vatican workman was killed and an Augustinian friar was injured. The blast also shattered the windows of the Palace of the Holy Office, the building housing the now-Dicastery for the Doctrine of the Faith.






