Padre Pio had a large following both before and after his death.
Some of his devotees say he could foretell the future, as well as know people's sins before they had confessed.
Some viewed him as a fraud, however, and for many years the Vatican itself was sceptical and banned him from celebrating Mass in public.
One Italian historian wrote last year that he may have used carbolic acid to produce his wounds.
Before his death, the Roman Catholic Church said it was convinced the monk's claims were not false.
The monks who exhumed his body in March said it was in "surprisingly good condition", despite no special measures having been taken to preserve it when he was buried in 1968.
"We could clearly make out the beard. The top part of the skull is partly skeletal but the chin is perfect and the rest of the body is well preserved. The knees, hands and nails all clearly visible," said Archbishop Domenico D'Ambrosio, who led the service to exhume the body.
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