Pope Francis, 88, remains in hospital battling double pneumonia, with his condition described as "critical" by the Vatican. The pontiff has received supplemental oxygen and blood transfusions following a severe respiratory crisis. As the world watches closely, the potential passing of a pope would set into motion a series of carefully orchestrated traditions, including a nine-day mourning period, an elaborate burial, and the election of a new leader for the Catholic Church. Here’s a breakdown of what happens next.
