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.

After the funeral service, the Pope's coffin was carried in an armour-plated ‘Popemobile’ through crowd-lined streets, across the River Tiber and past the Colosseum towards the basilica of Santa Maria Maggiore, where Pope Francis requested to be buried.

Francis, who took his name after Saint Francis of Assisi, was known for his outreach to the poor and those in poverty and that will be reflected in his minimalist burial at Saint Mary Major. He is the first pope to be buried outside the Vatican in over a century and the first to be buried at Santa Maria Maggiore in more than 300 years.

Pope Francis had a great sense of humor. When I met him once at the back of the papal plane, I cracked a joke with him that was a little bit close to the line. Luckily, he roared with laughter and told me “Sei cattivo!