The funeral drew world leaders, including President Trump and President Volodymyr Zelensky of Ukraine, who had a talk in the Basilica.

The cardinals -- at least, those under 80 years old -- vote for as long as it takes to elect Pope Francis' successor.

The Pope, famous—perhaps foremost—for his insistence on simplicity and aversion to clerical glitz, wanted to be buried not at the Vatican but at the Papal Basilica of St. Mary Major, where before and after each of his international trips he went to pray.