The Thai princess is said to be the royal representative for her country's king and queen at the wedding.
William and the Sultan don't just share an aristocratic upbringing, they both studied at the Royal Military Academy Sandhurst.
Clegg was active in the student theater while studying at Cambridge University and acted alongside Helena Bonham Carter in a play directed by Kate Winslet's ex-husband Sam Mendes.
Parliamentary? Yes. Stodgy? Oh, hell no.
The son of Princess Grace and his South African swimmer fiancée will marry this summer.
MORE PHOTOS: See Grace Kelly's royal wedding!
The controversial king's invite to the royal wedding caused a number of protests.
MORE PHOTOS: So Many Royal Wedding Dresses!