Is Pope Francis the Final Roman Pontiff?...Is Francis the last Pope? A rare interview with Archbishop Gänswein...What is the prophecy of St. Malachy?
"The 2012 book is based on an increasingly popular alleged prophecy, which is really more of a litany of prophecies, of the great reformer Bishop St. Malachy (1094-1148), who served as bishop of Conner, then Down, and finally as archbishop of Armagh, all in Ireland. The authors claim St. Malachy predicted the final 112 popes beginning with Pope Celestine II (elected in 1143), not by name, but by a short epithet, or motto, for each, leading us to the final pope before the Apocalypse, who is none other than our own Pope Francis.
The “prophecy” in question is real in the sense that it exists and is claimed to be written by St. Malachy. But when examined critically, it turns out neither to be true (meaning it contains things that don’t hold up the level of scrutiny required of a true prophecy) nor actually written by St. Malachy."
https://www.catholic.com/magazine/online-edition/is-pope-francis-the-final-roman-pontiff
"The 'Prophecy of the Popes'
During the interview, Paul Badde referenced an old alleged prophecy that has recently gained traction in some clerical discussions: The "Prophesy of the Popes." Also known as the "Prophesy of Malachy," the prediction is attributed to Saint Philipp Neri – according to which, Pope Francis may be considered to be the last pope.
"Indeed, when looking at the prophecy, and considering how there was always a sound reference to popes mentioned in its history – that gives me the shivers," Archbishop Gänswein admitted.
Although Catholics aren't required to accept the prophecy, "speaking from historical experience, one has to say: Yes, it is a wake-up call.""
https://www.catholicnewsagency.com/news/34096/is-francis-the-last-pope-a-rare-interview-with-archbishop-ganswein
"The legend goes that Malachy experienced a vision in which he was given insight into popes past, present, and future, and that he recorded this vision as a series of cryptic verses. The prophecies were quite accurate up to about 1590 (conveniently the point at which they were found), but then became rather vague, lending credence to the theory that they are a 16th-century forgery."
https://uscatholic.org/articles/201309/what-is-the-prophecy-of-st-malachy/