By the time Francis took over as leader of the Catholic Church in 2013, meetings between the president and the pontiff had become commonplace. During the dozen years that he served as the pontiff, Francis, who died April 21, met each of the three men who served as the U.S. president during his papacy.

Former President Joe Biden and first lady Jill Biden will be among those attending the April 26 funeral for Pope Francis in Vatican City.