Harry is also worth $40 million, just like his brother. However, unlike William, Harry is much more philanthropic and is less concerned about flipping the cash that he does have for more. Prince Harry used to be a member of the Army Air Corps, and he donated his entire salary to a charity that focuses on housing the homeless in the U.K.
Kate Middleton wasn't part of the royal family before, but when she married Prince William in 2011, her celebrity and financial status both skyrocketed. She didn't exactly come from nothing, but Middleton was extremely frugal prior to being part of the royal family. Because of her savings skills and her marketability, Middleton is worth around $10 million.