New Duke of Westminster Is Youngest Among World’s 400 Richest

Hugh Richard Louis Grosvenor, who became the 7th Duke of Westminster after the sudden death of his father Tuesday, joins the Bloomberg Billionaires Index today as his inheritance makes him the youngest billionaire among the world’s 400 richest people.

As duke, the 25-year-old now heads his family’s $12.3 billion estate, which includes hundreds of acres in London’s Belgravia and Mayfair neighborhoods, country homes, and Grosvenor Group, the London-based real estate firm with assets under management of 13 billion pounds ($19 billion) at the end of 2015.