A new pope will be selected to lead the Catholic Church following the death of Pope Francis. The pope is chosen during a highly secretive election called a conclave. Francis, 88, died on April 21. The pope will be honored with a nine-day mourning period known as the Novendiale, a tradition that began in Ancient Rome.

Pope Francis, whose time as head of the Catholic Church was noted for an everyman humility and outreach efforts to people of disparate backgrounds and faiths, has died at 88, the Vatican has confirmed.