Pope Francis's death at the age of 88 means the Catholic Church must choose a new leader. Here's how cardinals elect the next pontiff at the conclave.

What happens after Pope Francis funeral - how the Conclave to select his successor will work - The late pope broke from tradition with a burial at the Basilica of Saint Mary Major in Rome

A papal conclave, the election of a new pope, tends to begin 15-20 days after a papal vacancy. Black or white smoke indicates each day's decision.