Pope Francis was a frequent visitor to Rome long before he became pope. Now his favorite shops and artisans are pulling for him as he battles double pneumonia.

Argentinian faithful gathered in the Argentinian church of Rome on Tuesday to pray for Pope Francis’ health. The Mass was presided over by Cardinal Baldassarre Reina, the pope’s vicar general of the Diocese of Rome,

Catholics in Rome gathered to pray outside the hospital where Pope Francis is being treated and remains in a 'critical' condition.

The Vatican says Pope Francis, who is hospitalized in critical condition with double pneumonia, was well enough to meet with the Vatican secretary of state and his deputy to approve new decrees for saints and call a formal meeting to set the dates for their canonization.

Pope Francis' condition remains critical but stable and he was able to do some work while still in the hospital with double pneumonia, the Vatican said in a Tuesday evening update.

Concerns over Pope Francis' health have mounted in recent years as have questions about his succession. Here's what we know.