Prince Louis of Cambridge – $1 billion
King George VI and Queen Elizabeth II both had children born after the birth of the Duke of Cambridge, Prince Louis of Cambridge. He hadn’t even hit the milestone of turning a year old yet. He did, however, have a significant amount of cash saved up. According to experts, he will add $70 million to the British economy over the next five years. If Marie Claire’s report is to be believed, Louis was born with an estimated $1 billion in assets. Tourists passing through the nation bought royal items bearing his name and likeness from local vendors and sellers.

Prince Louis of Cambridge – $1 billion