Indulgence for Visit to the Patriarchal Basilicas in Rome: Basilicarum Patriarchalium in Urbe Visitatio

"A plenary indulgence is granted to the faithful, who devoutly visit one of the four Patriarchal Basilicas in Rome, and there recite one Our Father and the Creed.  1) on the titular feast; 2) on any holyday of obligation; 3) once a year, on any other day of one's choice."

-Enchiridion of Indulgences, 11. 

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