In fact, with a black ostrich-plumed hat, a red hood, a blue velvet cloak lined with white satin, a silver star, a priceless miniature of St George and the Dragon dangling from a chain of solid gold and a garter strapped just below his left knee, it will probably be the biggest dressing-up exercise this side of his own coronation.
And once he has managed to put all this on, he has to walk at hobbling speed through Windsor Castle for nearly a quarter of a mile in front of thousands of people and the world’s media.
But, behind all the flummery, there will be a very serious point to Monday’s event.
The Prince will become a knight. And he will not be receiving any old knighthood, either.
The second in line to the throne will be formally invested as a ‘Royal Knight Companion of the Most Noble Order of the Garter’.