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

With Pope Francis still in critical condition, some may ask what happens when the Holy See becomes sede vacante after the ...

The resignation of Pope Benedict XVI has demonstrated the process by which a pope might step down and be replaced.

ROME (AP) — Pope Francis was in critical but stable condition Tuesday, with his blood parameters remaining stable and no new ...

Like his predecessors, Pope Francis was selected using an age-old method -- a system known as the Papal conclave.

Pope Francis remained in critical but stable condition Tuesday, with his blood parameters remaining stable as he works from ...

Despite his hospital stay, Pope Francis remains in charge of the Catholic Church. But what if his health continues to decline ...

The Vatican says Pope Francis, who is hospitalized in critical condition with double pneumonia, was well enough to meet with ...