Hugh Grosvenor, 7th Duke of Westminster – $13 million
The seventh Duke of Westminster, Hugh Grosvenor, was regarded as one of the world’s wealthiest young men. The Grosvenor Group was his main source of revenue. He was the managing director of a real estate firm in England. Not only that, but he also worked for Bio-bean as an account manager.
Hugh Grosvenor, 7th Duke of Westminster – $13 million
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