As we all know, plenty of celebs rubbed elbows at Windsor Castle for the nuptials of Prince Harry and Meghan Markle, but one particularly dapper gent caught our eye - and he's probably worth more than the royals themselves. Mike Hess, the handsome young oil heir to the Hess fortune, attended alongside Misha Nonoo, the It Girl designer who's rumored to be the matchmaker responsible for Meghan and Harry's romantic bliss. And though he garnered attention for escorting perhaps the most important guest at the royal wedding, this isn't the first time he's made headlines. Click through for everything we know about the billionaire boy-about-town.