Everyone knows Kate Middleton because of her dreamy royal wedding to Prince William. And everyone knows her younger sister, Pippa, because of the scene-stealing bridesmaid dress she wore to that wedding. 

But fewer people know about the youngest Middleton: 29-year-old James, who's making his way in the business world as the head of a 100% serious, personalised marshmallow company called Boomf

Here's a look at James's life both before and after his family became quasi-royalty. 

James, 29, is the youngest Middleton sibling. He grew up with Kate and Pippa in Bucklebury, Berkshire and attended the boarding school Marlborough College.