When Prince William watches on as his father King Charles is crowned, it will be an insight into what his future holds when he one day takes the throne.
But the Prince of Wales won't just be a spectator for the historic celebration on May 6, he's expected to have a number of vital roles in the ceremony.
While Buckingham Palace is yet to officially confirm which royals will be doing what, royal expert and historian Tessa Dunlop has shared her best educated guess about what the day could look like.