A papal conclave is set to begin in Vatican City starting May 7, during which cardinals from around the world will elect the next leader of the Roman Catholic church. The tradition occurs any time a pope dies or resigns from the office. Here's what to know ahead of this week's conclave.

Pope Francis is breaking with tradition when it comes to where he will be laid to rest – choosing a light-filled basilica with an intriguing history instead of the grottoes of the Vatican.

Pope Francis’ funeral Mass has ended, and cardinals have filed back into St. Peter’s Basilica. The crowd applauded as white-gloved pallbearers lifted the pope’s coffin to bring it back inside the basilica. From there, it will be moved to the popemobile to make its way across Rome to Francis’ burial place in St. Mary Major.