Prince William traveled to Vatican City on Saturday, April 26 in order to attend Pope Francis's funeral. King Charles didn't attend the funeral, which brought together a plethora of world leaders. According to a royal expert, there's an important reason Charles decided to send William to the funeral in his place.

EXCLUSIVE: Body language expert said Prince William showed he will make an "ideal king" one day at Pope Francis's funeral on Saturday.

US President Donald Trump and Ukraine’s leader Volodymyr Zelenskyy was among the high-profile figures to take their seats in front of The Vatican. Prince William attended on behalf of the UK’s King Charles and was seen paying his respects in front of Francis’s coffin ahead of the service.