Even before Saturday's funeral service for Pope Francis at the Vatican, the late pontiff has already broken with some traditions in the ways pontiffs are laid to rest.

Former President Joe Biden and first lady Jill Biden will among those attending Saturday's funeral for Pope Francis in Vatican City.

For bishops and archbishops, the liturgical clothes for a funeral include the alb, a white tunic held by a traditional cord called cincture, the amice, a short linen cloth to cover the neck, and a red chasuble, a solemn cape, in honour of the pope. Finally, they don a simple white linen or silk mitre on their heads.