Hugh Grosvenor, 7th Duke of Westminster

The Duke of Westminster is the dictionary definition of a modern English blue blood—incredibly handsome, with a stellar academic pedigree, and a literal billionaire. His Grace owns the Grosvenor Estate, which includes over 1,500 properties in 60 countries, and acres of the exclusive Mayfair and Belgravia neighbourhoods in London. And, he is only 27 to boot.