Analysis of information sources in references of the Wikipedia article "Three Days of Darkness" in English language version.
Padre Pio's name was connected with this prophecy in the late 1940s by the Council of Heroldsbach [...] The Council composed a letter about the three days of darkness and forged Padre Pio's name to it. The letter was declared to be a forgery in 1930 by Padre Pio's superior in San Giovanni Rotondo. In 1951, the Vatican's Holy Office, without mentioning Padre Pio by name, stated that the alleged appearances of the Blessed Virgin in Heroldsbach were not supernatural and warned that "priests who in the future take part in this outlawed cult are automatically suspended from the exercise of their priestly ministry." On March 31, 1994, the Auxiliary Bishop of Bamberg, Germany, informed Fr. Schug by letter that "Padre Pio had nothing whatsoever to do with Heroldsbach. There is not the slightest connection."