After spending the majority of the year at Rome's Gemelli Hospital, Pope Francis died on Easter Monday from a stroke and irreversible heart failure. He was 88 years old. Francis' funeral is at 10 a.

The reign of Pope Francis is over, and as the Catholic Church mourns his death, it is also looking to the future. Soon after Saturday's funeral, a papal conclave must be held to choose his successor,

Simply put, a conclave is the assembly of cardinals that elects a pope. The word itself comes from the Latin "com" and "clavis," meaning "together" and "key," respectively – highlighting the absolute, behind-closed-doors secrecy with which the cardinals conduct their discussions and balloting.