Rich girls having a fascination with horses has always been something of a cliché and a stereotype, but we're seeing equine interests coming up again and again in our list, so there must be some truth to the tale. Charlotte Söderström is the daughter of Stefan Persson, who is the man behind fashion retailer H&M. With her shares in the company she's worth $2.5bn, but despite having a role within the business, it's not where her passion lies.
That, as we implied, is with horses. She doesn't simply ride them though; she breeds them. Söderström and her husband have a stud farm, which is a lucrative business if you're capable of producing racehorses as they are. Her husband works with her on the stud farming side of things, which gives her the time to maintain both her professional roles. They have three children together.