His appearance today was unannounced but not unexpected as Swiss Guards were posted around the square, a sign that the pope would be present at some point.

Mr. Bruni said the pope is in “good humor” and happy to get out of his suite at the Casa Santa Marta and surprise people, as we saw yesterday, April 10, when the pope appeared in St. Peter’s Basilica.

King Charles III and Queen Camilla paid a private visit to Pope Francis in the Vatican on the afternoon of April 9, the 18th day of his convalescence.

When asked if we could expect other such surprises in the coming days, Dr. Sergio Alfieri responded: “I do not rule out that the Holy Father will give us other surprises. We know him.”

Pope Francis arrived in a wheelchair at the end of the Mass for the Jubilee of the Sick and Health Care Workers, sparking joyous shouts of “Viva il Papa!” from the more than 20,000 present.

Since Francis’ hospitalization on Feb. 14, the Vatican has issued a written message from him every Sunday, but there is a possibility that on April 6, he may appear “in a different way.”

Pope Francis is “in good humor” and “receives much affection” from people worldwide, the Vatican spokesman said on April 1.

Pope Francis shared that he is experiencing “healing,” specifically “in my soul and my body,” as he reaches the eighth day of the minimum two-month period of rest and convalescence prescribed by his doctors.

Pope Francis continues to be in stable condition and has registered improvements in both breathing and speech, the Vatican said on March 28.

In an interview with an Italian newspaper, Pope Francis’ lead doctor described in some detail the two critical situations where the pope came close to death.