I think we have to be careful if we try to decide whom is Pope and whom is not , that we might make the same mistake Martin Luther made and effectively become Protestant. I don't think Our Holy Mother the Church has left it to us to make such Judgements. Better left in the Hands of the Good God who can handle these things so much better than we.
I don't know about the original Italian message, but the prophecy is quoted by this blogger who I think is a convert from Judaism: http://aronbengilad.blogspot.com/2013/03/white-pope-and-black-pope-benedict-and.html I hope the page opens for you but, in case it doesn't, the wording of the prophecy as quoted by him is identical to the one you quoted. The reason I'm linking to his blog (which looks very interesting) is that someone responded in the comments section, as follows: "Regarding the Prophecy of the White Pope dying at the same time as the Black Pope. This happened in 1914 Both the Pope in Rome Pius X and the Black Pope (Jesuit leader Franz Xavier Wernz ) died on the same night 20th August 1914 on the very day when German forces marched into Brussels. Look at the section "Death and Burial on Pope Saint Pius X's Wiki page. https://en.wikipedia.org/wiki/Pope_Pius_X" Whenever I heard that prophecy mentioned, it was always understood that the Black Pope meant the Superior General of the Jesuit Order. We haven't had a great conversion to the Christian faith since 1914, so perhaps it means the situation we have now with a Pope Emeritus wearing white and a reigning Jesuit Pope? Or it could mean a valid Pope and an anti-Pope dying on the same night. I've seen some speculation about the Black Pope referring to skin colour but I doubt that very much. Welcome to the forum.
