Grosvenor Family’s Wealth and Diversified Investments The Grosvenor family is widely recognized for their ownership of prestigious properties in the affluent districts of Mayfair and Belgravia in west London. However, this is only a small aspect of the larger Grosvenor Group, which manages the Duke of Westminster’s wealth. Today, the Duke, Hugh Grosvenor, is set to marry Olivia Henson…