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.

Catholic cardinals will assemble for the election of the next leader of the church on May 7, after the funeral of Pope Francis last Saturday.

The conclave to pick the next pope following the April 21 death of Pope Francis will begin on Wednesday, May 7, according to the Vatican.