Pope Francis’ emphasis on reaching out to the “peripheries" of the church and world will result in the most diverse collection of church leaders in history gathering to select the new pope.

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.

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.