St. Peter's Square at the Vatican. The Roman Catholic Church has entered… (Filippo Monteforte / AFP/Getty…)
VATICAN CITY — One day soon, perhaps on a fine morning this spring, a new pope strolling through the Vatican's beautifully tended gardens may run into something that few, if any, of his predecessors ever encountered: another pope.
Technically, of course, there will be only one reigning pontiff, the man elected by the College of Cardinals after Benedict XVI steps down Feb. 28. But some papal aura will no doubt cling to the older, silver-haired former pope, who was deemed God's chosen representative. And therein may lie a rub.
Benedict's shocking decision to resign has raised a host of unexpected — and unprecedented — issues, not least the influence that a previous pope could, would or should exercise after his anointed successor is in place.
Moreover, his decision to live out his days within the precincts of the Vatican, in a vacant monastery, makes it highly likely that he and his replacement will literally cross paths, giving rise to a potentially awkward situation.
"It's the first time in history that we will have inside the Vatican two popes, the old one and the new one," said Marco Ansaldo, the Vatican correspondent for Italy's La Repubblica newspaper. "I don't think that there will be a direct conflict. But the new pope … will know that he's watched by the old one."
Benedict is the first pontiff in nearly 600 years to resign, and the first in even longer to do so willingly. In many ways, the situation is akin to a constitutional crisis brought on by the abdication of a monarch. There's no script, no simple protocol. What do you even call the former occupant of the throne — in this case the throne of St. Peter?
The Vatican's genial spokesman, Father Federico Lombardi, candidly acknowledged at a news conference Tuesday that he had no answers yet to some basic questions, including what would be done with the papal ring, which is used as an official seal and by tradition is destroyed when a pontiff dies.
Lombardi said the retired pope would continue to be known as Benedict XVI and would not return to being a cardinal. "It is difficult to call him cardinal after he was pope," Lombardi said. All popes are automatically appointed bishop of Rome, and Lombardi said Benedict would become bishop emeritus.
More relevant for the Catholic faithful is whether the new pope's teaching and authority might somehow be undermined by the very presence of his predecessor, perhaps leading to a dangerous schism.
Some believers and clerics might insist, for example, that Benedict's vocation as Holy Father, the leader of the flock, is not his to give away, however voluntarily. As Pope Paul VI once put it, paternity cannot be resigned.
"The idea of two popes could be really problematic," said Antonio Sabetta, a professor at Pontifical Lateran University in Rome.
Tantalizingly, Benedict has been working in these last days of his papacy on a new encyclical, the document of the highest importance a pope can produce, on the subject of faith. It won't be finished before his retirement, Lombardi said, and therefore will go unpublished, at least in encyclical form.
But if it appears in a book, there's a danger that it or other such writings could muddy the waters for the new pope, who might feel constrained by Benedict's deeply intellectual teachings or intimidated by what even critics concede is his elegant, limpid prose. No matter how well-intentioned, such work could have the effect of bigfooting his successor.
"If he starts to write about sensitive topics pertaining to, say, the church in the world, this will be a problem and create confusion in people, because who do we follow: all the popes, the previous one, the pope who's most similar to our way of thinking?" Sabetta said.
Sabetta thinks the shy, scholarly Benedict will probably strive to avoid any hint of tension, disagreement or conflict with his successor, both for the good of the church and to allow himself to enjoy a quiet retirement out of the public eye, with his beloved books and pampered cat for company.
"Considering Pope Benedict, who is really interested in studying and praying, I think it won't be a problem," Sabetta said. "Pope Benedict is a very humble man.... I think he will almost disappear from the scene."
The Vatican said Benedict would maintain an active schedule until his retirement, including his usual weekly audience Wednesday morning and the annual Ash Wednesday service in the afternoon.
Lombardi revealed for the first time that the pope had been fitted with a pacemaker. But he said that neither the pacemaker nor any specific illness had prompted the decision to resign, which Benedict ascribed to his generally declining health. He is 85.
The conclave to choose a new leader for the world's 1 billion Roman Catholics will probably convene around mid-March. The Vatican has said Benedict has pledged not to participate or interfere in the election.